Gordon County Courthouse in Calhoun, GA / Photo by Brent Moore, Creative Commons
Edited by Matthew A. McIntosh / 03.12.2018
The requirement of proof beyond a reasonable doubt has this vital role in our criminal procedure for cogent reasons. The accused, during a criminal prosecution, has at stake interests of immense importance, both because of the possibility that he may lose his liberty upon conviction and because of the certainty that he would be stigmatized by the conviction.
The United States’ system of government is called federalism. Federalism, as set forth in the US Constitution, divides governmental power between the federal government and each of the states. This prevents a concentrated source of governmental power in one individual or small group of individuals. Because of federalism, the United States has one federal legal system, and each state has its own state legal system. Thus in the United States, a plethora of legal systems all operate harmoniously at the same time.
The Scope of Federal Law
The government’s power to regulate comes from the US Constitution. The federalgovernment derives its authority to create law from Article I, § 8, which discusses federal Congress’s exclusive or delegated powers. These include the power to regulate currency and coin, establish a post office, promote science and art by regulating the rights to discoveries and writings, declare war and raise armies, conduct foreign affairs, regulate interstate and foreign commerce, and make laws necessary and proper to execute other powers expressly granted in the Constitution. Courts have interpreted the last two powers mentioned in the commerce clause and the necessary and proper clause to be the broadest sources of federal regulatory authority.
To simplify and summarize precedent defining federal regulatory authority, federal laws are meant to regulate in two areas. First, federal laws regulate issues that concern the country, rather than just one city, county, or state. The federal government regulates in the area of foreign affairs, for example, because this affects the United States of America, not just one particular region. Second, federal laws regulate commerce, which is economic activity, that crosses from state to state. Some common examples are television broadcasts, the Internet, and any form of transportation such as the airlines.
Federal Criminal Laws
Figure 2.1 Diagram of Federal Laws
The original intent was for the federal government to be a limited government, with the bulk of regulatory authority residing in the states. The only crimes Congress is specifically authorized to punish are piracies and felonies on the high seas, counterfeiting, and treason; however, case precedent has expanded the federal government’s power to enact criminal laws based on the commerce clause and the necessary and proper clause (McCulloch v. Maryland, 2010). Still, there must be someconnection to an issue of national character and interstate commerce, or the federal government will overstep its authority. In general, federal criminal laws target conduct that occurs on federal property or conduct involving federal employees, currency, coin, treason, national security, rights secured by the Constitution, or commerce that crosses state lines. Currently, over five hundred crimes are listed in Part I, Title 18 of the United States Code, which codifies criminal laws for the federal government.
The Scope of State Law
The US Constitution designates the states as the primary regulatory authority. This is clarified in the Tenth Amendment, which reads, “The powers not delegated to the United States by the Constitution, nor prohibited to it by the States, are reserved to the States respectively, or the people.” State laws are also supposed to regulate in two areas. First, state laws regulate issues of a local character or concern. A state may regulate, for example, its water ownership and use because water can be scarce and is not generally provided to other states. Second, state laws regulate issues or things that remain within a state’s border. A state generally regulates, for example, the operation of a small business whose products are only sold locally and not shipped out of the state.
Federal laws are the same in every state, but state laws differ from state to state. Something that is legal in one state may be illegal in another state. This inconsistency makes our system of federalism complicated for students (and lawyers). However, with a country as large and varied as the United States, it is sensible to allow each state to choose for itself which laws will be most suitable.
State Criminal Laws
The power to enact criminal laws belongs almost exclusively to the states. This is because of the Tenth Amendment, which vests in states a police power to provide for the health, safety, and welfare of state citizens. Approximately 90 percent of all criminal laws are state, rather than federal. Often, federal crimes are also state crimes and can be prosecuted and punished by both the state and federal government without violating the principle of double jeopardy.
Example of the Diversity of State Laws
Figure 2.2 Crack the Code
In Nevada, prostitution is legal under certain circumstances (N.R.S., 2010). An individual who engages in prostitution inside a licensed “house of prostitution” in Nevada is not exposed to criminal liability. However, if the same individual engages in prostitution in a different state, he or she may be subject to a criminal prosecution.
Our legal system is divided up to conform to the principle of federalism, so a potential exists for conflict between federal law and state law. A federal law may make something illegal; a state law may insist that it is legal. Whenever a conflict occurs between federal and state law, courts must follow the federal law. This is called federal supremacy. As the Supremacy Clause of Article VI of the federal Constitution states, “This Constitution, and the Laws of the United States which shall be made in Pursuance thereof; and all Treaties made, or which shall be made, under the Authority of the United States, shall be the supreme Law of the Land; and the Judges in every State shall be bound thereby, any Thing in the Constitution or Laws of any State to the Contrary notwithstanding.”
Example of Federal Supremacy
Figure 2.3 Diagram of State Laws
In Washington and several other states, an individual may possess and use marijuana for medicinal purposes with a prescription (Washington State Medicinal Marijuana Act, 2010; ProCon.org, 2010). Federal law prohibits possession and use of marijuana under any circumstances (21 U.S.C., 2010). Technically, this could be a conflict that violates federal supremacy. Until the courts address the federal supremacy issue, however, medical marijuana statutes can continue to stay in effect. Read about a recent ruling regarding the constitutionality of Michigan’s medicinal marijuana law under the Supremacy Clause: http://www.pressandguide.com/articles/2011/04/09/news/doc4d9f557b8ab37805648033.txt.
The Arizona Immigration Law
Arizona passed a comprehensive immigration law designed to seek out and deport illegal immigrants. The federal government attacked the law in Federal District Court (Archibold, R. C., 2010). Judge Susan Bolton issued a preliminary injunction that stopped enforcement of the sections of the law that required state law enforcement to check an immigrant’s status while enforcing other laws and that required immigrants to prove they were in the country legally or risk state charges (Archibold, R. C., 2010). Read the District Court’s preliminary injunction ruling, which is available at this link: http://graphics8.nytimes.com/packages/pdf/national/20100729_ARIZONA_DOC.pdf.
The Branches of Government
The federal Constitution was written to ensure that government power is distributed and never concentrated in one or more areas. This philosophy is served by federalism, where the federal government shares power with the states. It is also further served by dividing the government into three branches, all responsible for different government duties and all checking and balancing each other. The three branches of government are detailed in Articles I–III of the federal Constitution and are the legislative branch, the executive branch, and the judicial branch. While the federal Constitution identifies only the federal branches of government, the principle of checks and balances applies to the states as well. Most states identify the three state branches of government in their state constitution.
Each branch of government has a distinct authority. When one branch encroaches on the duties of another, this is called a violation of separation of powers. The courtsdecide whether a government branch has overstepped its boundaries because courts interpret the Constitution, which describes each branch’s sphere of influence. Thus the judicial branch, which consists of all the courts, retains the balance of power.
The Legislative Branch
Figure 2.4 Diagram of the Legislative Branch
The legislative branch is responsible for creating statutory laws. Citizens of a state can vote for some state statutes by ballot, but the federal legislative branch enacts all federal statutes. In the federal government, the legislative branch is headed by Congress. States’ legislative branches are headed by a state legislature. Congress is bicameral, which means it is made up of two houses. This system provides equal representation among the several states and by citizens of the United States. States are represented by the Senate. Every state, no matter how large or small, gets two senators. Citizens are represented by the House of Representatives. Membership in the House of Representatives is based on population. A heavily populated state, like California, has more representatives than a sparsely populated state, like Alaska. States’ legislatures are generally bicameral and have a similar structure to the federal system.
Legislative Checks and Balances
The legislative branch can check and balance both the executive branch and the judicial branch. Congress can impeach the president of the United States, which is the first step toward removal from office. Congress can also enact statutes that supersede judicial opinions. Similarly, state legislature can also impeach a governor or enact a state statute that supersedes a state case law.
The Executive Branch
Figure 2.5 Diagram of the Executive Branch
The executive branch is responsible for enforcing the statutes enacted by the legislative branch. In the federal government, the executive branch is headed by the president of the United States. States’ executive branches are headed by the governor of the state.
Legislative Checks and Balances
The executive branch can check and balance both the legislative branch and the judicial branch. The president of the United States can veto statutes proposed by Congress. The president also has the authority to nominate federal justices and judges, who thereafter serve for life. State executive branches have similar check and balancing authority; a governor can generally veto statutes proposed by state legislature and can appoint some state justices and judges.
The Judicial Branch
Figure 2.6 Diagram of the Judicial Branch
The judicial branch is responsible for interpreting all laws, including statutes, codes, ordinances, and the federal and state constitutions. This power is all encompassing and is the basis for judicial review. It allows the judicial branch to invalidate any unconstitutional law in the statutory source of law and also to change the federal and state constitutions by interpretation. For example, when a court creates an exception to an amendment to the constitution, it has made an informal change without the necessity of a national or state consensus. The federal judicial branch is headed by the US Supreme Court. Each state’s judicial branch is headed by the highest-level state appellate court. Members of the judicial branch include all judges and justices of every federal and state court in the court system, which is discussed shortly.
Legislative Checks and Balances
The judicial branch can check and balance both the legislative branch and the executive branch. The US Supreme Court can invalidate statutes enacted by Congress if they conflict with the Constitution. The US Supreme Court can also prevent the president from taking action if that action violates separation of powers. The state courts can likewise nullify unconstitutional statutes passed by the state legislature and void other executive branch actions that are unconstitutional.
Table 2.1 The Most Prominent Checks and Balances between the Branches
The Court System
Every state has two court systems: the federal court system, which is the same in all fifty states, and the state court system, which varies slightly in each state. Federal courts are fewer in number than state courts. Because of the Tenth Amendment, most laws are state laws and therefore most legal disputes go through the state court system.
Federal courts are exclusive; they adjudicate only federal matters. This means that a case can go through the federal court system only if it is based on a federal statute or the federal Constitution. One exception is called diversity of citizenship (28 U.S.C. § 1332, 2010).If citizens from different states are involved in a civil lawsuit and the amount in controversy exceeds $75,000, the lawsuit can take place in federal court. All federal criminal prosecutions take place in federal courts.
State courts are nonexclusive; they can adjudicate state or federal matters. Thus an individual who wants to sue civilly for a federal matter has the option of proceeding in state or federal court. In addition, someone involved in a lawsuit based on a federal statute or the federal Constitution can remove a lawsuit filed in state court to federal court (28 U.S.C. § 1441, 2010). All state criminal prosecutions take place in state courts.
Determining which court is appropriate for a particular lawsuit depends on the concept of jurisdiction. Jurisdiction has two meanings. A court’s jurisdiction is the power or authority to hear the case in front of it. If a court does not have jurisdiction, it cannot hear the case. Jurisdiction can also be a geographic area over which the court’s authority extends.
There are two prominent types of court jurisdiction. Original jurisdiction means that the court has the power to hear a trial. Usually, only one opportunity exists for a trial, although some actions result in both a criminal and a civil trial. During the trial, evidence is presented to a trier of fact, which can be either a judge or a jury. The trier of fact determines the facts of a dispute and decides which party prevails at trial by applying the law to those facts. Once the trial has concluded, the next step is an appeal. During an appeal, no evidence is presented; the appellate court simply reviews what took place at trial and determines whether or not any major errors occurred.
The power to hear an appeal is called appellate jurisdiction. Courts that have appellate jurisdiction review the trial record for error. The trial record includes a court reporter’s transcript, which is typed notes of the words spoken during the trial and pretrial hearings. In general, with exceptions, appellate courts cannot review a trial record until the trial has ended with a final judgment. Once the appellate court has made its review, it has the ability to take three actions. If it finds no compelling or prejudicial errors, it can affirm the judgment of the trial court, which means that the judgment remains the same. If it finds a significant error, it can reverse the judgment of the trial court, which means that the judgment becomes the opposite (the winner loses, the loser wins). It can also remand, which means send the case back to the trial court, with instructions. After remand, the trial court can take action that the appellate court cannot, such as adjust a sentence or order a new trial.
Some courts have only original jurisdiction, but most courts have a little of original and appellate jurisdiction. The US Supreme Court, for example, is primarily an appellate court with appellate jurisdiction. However, it also has original jurisdiction in some cases, as stated in the Constitution, Article III, § 2, clause 2: “In all Cases affecting Ambassadors, other public Ministers and Consuls, and those in which a State shall be Party, the supreme Court shall have original Jurisdiction. In all the other Cases before mentioned, the supreme Court shall have appellate jurisdiction.”
Example of Original and Appellate Jurisdiction
Paulina is prosecuted for the attempted murder of Ariana. Paulina is represented by public defender Pedro. At Paulina’s trial, in spite of Pedro’s objections, the judge rules that Paulina’s polygraph examination results are admissible, but prohibits the admission of certain witness testimony. Paulina is found guilty and appeals, based on the judge’s evidentiary rulings. While Pedro is writing the appellate brief, he discovers case precedent barring the admission of polygraph examination results. Pedro can include the case precedent in his appellate brief but not the prohibited witness testimony. The appellate court has the jurisdiction to hold that the objection was improperly overruled by the trial court, but is limited to reviewing the trial record for error. The appellate court lacks the jurisdiction to admit new evidence not included in the trial record.
The Federal Courts
The focus here is the federal trial court and the intermediate and highest level appellate courts because these courts are most frequently encountered in a criminal prosecution. Other federal specialty courts do exist but are not discussed, such as bankruptcy court, tax court, and the court of military appeals.
The federal trial court is called the United States District Court. Large states like California have more than one district court, while smaller states may have only one. District courts hear all the federal trials, including civil and criminal trials. As stated previously, a dispute that involves only state law, or a state criminal trial, cannot proceed in district court. The exception to this rule is the diversity of citizenship exception for civil lawsuits.
After a trial in district court, the loser gets one appeal of right. This means that the intermediate appellate federal court must hear an appeal of the district court trial if there are sufficient grounds. The intermediate appellate court in the federal system is the United States Court of Appeals. There is less federal law than state law, so only thirteen US Courts of Appeals exist for all fifty states. The US Courts of Appeals are spread out over thirteen judicial circuits and are also referred to as Circuit Courts.
Circuit Courts have appellate jurisdiction and can review the district court criminal and civil trials for error. The Circuit Court reviews only trials that are federal in nature, with the exception of civil lawsuits brought to the district court under diversity of citizenship. The federal Constitution governs criminal trials, so only a guilty defendant can appeal. In general, with exceptions, appeal of a not-guilty verdict (also called an acquittal) violates a defendant’s double jeopardy protection.
After a Circuit Court appeal, the loser has one more opportunity to appeal to the highest-level federal appellate court, which is the United States Supreme Court. The US Supreme Court is the highest court in the country and is located in Washington, DC, the nation’s capital. The US Supreme Court has eight associate justices and one chief justice: all serve a lifetime appointment.
The US Supreme Court is a discretionary court, meaning it does not have to hear appeals. Unlike the Circuit Courts, the US Supreme Court can pick and choose which appeals it wants to review. The method of applying for review with the US Supreme Court is called filing a petition for a writ of certiorari.
Any case from a Circuit Court, or a case with a federal matter at issue from a state’s highest-level appellate court, can petition for a writ of certiorari. If the writ is granted, the US Supreme Court reviews the appeal. If the writ is denied, which it is the majority of the time, the ruling of the Circuit Court or state high court is the final ruling. For this reason, the US Supreme Court reverses many cases that are accepted for review. If the US Supreme Court wants to “affirm” the intermediate appellate court ruling, all it has to do is deny the petition and let the lower court ruling stand.
The State Courts
Figure 2.7 Diagram of the Court System
Most states offer their citizens a “people’s court,” typically called small claims court. Small claims court is a civil court designed to provide state citizens with a low-cost option to resolve disputes where the amount in controversy is minimal. A traditional small claims court only has the jurisdiction to award money damages. This means that it cannot adjudicate criminal matters or family court matters such as granting a petition for divorce. Small claims courts also limit the amount of money damages available, typically less than $10,000.
Small claims court has special rules that make it amenable to the average individual. Attorneys cannot represent clients in small claims court, although they certainly can represent themselves just like any other individual. Small claims court proceedings are generally informal, and usually no court reporter types what is said. Therefore, no court record exits for appeal. Small claims court appeals are the exception to the general rule and are usually new trials where evidence is accepted.
States generally have a state trial court that can also be the appellate court for small claims court appeals. This trial court is usually called superior court, circuit court, or county court. State trial courts are generally all-purpose and hear civil litigation matters, state criminal trials, and nonlitigation cases including family law, wills and probate, foreclosures, and juvenile adjudications. States can, however, create “specialty courts” to hear special matters and free up the trial courts for basic criminal prosecutions and civil litigation trials. Some states divide their trial courts into lower and higher levels. The lower-level trial court adjudicates infractions and misdemeanors, along with civil lawsuits with a smaller amount in controversy. The higher-level trial court adjudicates felonies and civil lawsuits with a higher amount in controversy.
The intermediate appellate court for the state court system is usually called the state court of appeals, although some smaller or low-population states may have only oneappellate court called the state supreme court. The state courts of appeal provide appeals of right, meaning they must hear an appeal coming from the state’s trial court if adequate grounds are present. Appeals can be of any case adjudicated in the state trial court. In state criminal prosecutions, as stated earlier in the discussion of federal appeals, only a guilty defendant can appeal without violating the protection against double jeopardy. At the appellate level, the state court of appeal simply reviews the trial court record for error and does not have the jurisdiction to hear new trials or accept evidence.
The highest appellate court for the state court system is usually called the state supreme court. In states that have both intermediate and high-level appellate courts, the state supreme court is a discretionary court that gets to select the appeals it hears, very similar to the US Supreme Court. The state supreme court generally grants a petition for writ of certiorari, or a petition for review, if it decides to hear a civil or criminal case coming out of the state court of appeal. If review is denied, the state court of appeal ruling is the final ruling on the case. If review is granted and the state supreme court rules on the case, the loser has one more chance to appeal, if there is a federal matter, to the US Supreme Court.
The Burden of Proof
The key to the success of a civil or criminal trial is meeting the burden of proof. A failure to meet the burden of proof is also a common ground for appeal. Here you will learn the burden of proof for the plaintiff, prosecution, and defendant. You also are introduced to different classifications of evidence and evidentiary rules that can change the outcome of the trial.
Definition of the Burden of Proof
The burden of proof is a party’s responsibility to prove a disputed charge, allegation, or defense (Yourdictionary.com, 2010). The burden of proof has two components: the burden of production and the burden of persuasion. The burden of production is the obligation to present evidence to the judge or jury. The burden of persuasion is the duty to convince the judge or jury to a certain standard, such as beyond a reasonable doubt, which is defined shortly. This standard is simply a measuring point and is determined by examining the quantity and quality of the evidence presented. “Meeting the burden of proof” means that a party has introduced enough compelling evidence to reach the standard defined in the burden of persuasion.
The plaintiff or prosecutor generally has the burden of proving the case, including every element of it. The defendant often has the burden of proving any defense. The trier of fact determines whether a party met the burden of proof at trial. The trier of fact would be a judge in a nonjury or bench trial. In a criminal case, the trier of fact is almost always a jury because of the right to a jury trial in the Sixth Amendment. Jurors are not legal experts, so the judge explains the burden of proof in jury instructions, which are a common source of appeal.
Burden of Proof in a Civil Case
Burdens of proof vary, depending on the type of case being tried. The plaintiff’s burden of proof in a civil case is called preponderance of evidence. Preponderance of evidence requires the plaintiff to introduce slightly more or slightly better evidence than the defense. This can be as low as 51 percent plaintiff to 49 percent defendant. When preponderance of evidence is the burden of proof, the judge or jury must be convinced that it is “more likely than not” that the defendant is liable for the plaintiff’s injuries. Preponderance of evidence is a fairly low standard, but the plaintiff must still produce more and better evidence than the defense. If the plaintiff offers evidence of questionable quality, the judge or jury can find that the burden of proof is not met and the plaintiff loses the case.
The defendant’s burden of proof when proving a defense in a civil case is also preponderance of evidence. For example, O. J. Simpson failed to meet the burden of proving the defense of alibi. The defendant does not always have to prove a defense in a civil case. If the plaintiff does not meet the burden of proof, the defendant is victorious without having to present any evidence at all.
Burden of Proof in a Criminal Prosecution
Figure 2.8 Diagram of the Criminal Burden of Proof
The prosecution’s burden of proof in a criminal case is the most challenging burden of proof in law; it is beyond a reasonable doubt. Judges have struggled with a definition for this burden of proof. As Chief Justice Shaw stated nearly a century ago,
[w]hat is reasonable doubt? It is a term often used, probably pretty well understood, but not easily defined. It is not mere possible doubt; because every thing relating to human affairs, and depending on moral evidence, is open to some possible or imaginary doubt. It is that state of the case, which, after the entire comparison and consideration of all the evidence, leaves the minds of jurors in that condition that they cannot say they feel an abiding conviction, to a moral certainty, of the truth of the charge (Commonwealth v. Webster, 2010).
In general, the prosecution’s evidence must overcome the defendant’s presumption of innocence, which the Constitution guarantees as due process of law (In re Winship, 2010). This fulfills the policy of criminal prosecutions, which is to punish the guilty, not the innocent. If even a slight chance exists that the defendant is innocent, the case most likely lacks convincing and credible evidence, and the trier of fact should acquit the defendant.
States vary as to their requirements for the defendant’s burden of proof when asserting a defense in a criminal prosecution (Findlaw.com, 2010). Different defenses also have different burdens of proof. Some states require the defendant to meet the burden of production, but require the prosecution to thereafter meet the burden of persuasion, disproving the defense to a preponderance of evidence or, in some states, beyond a reasonable doubt. Other states require the defendant to meet the burden of production and the burden of persuasion. In these states, the defendant’s standard is typically preponderance of evidence, not beyond a reasonable doubt. The defendant does not always have to prove a defense in a criminal prosecution. If the prosecution does not meet the burden of proof, the defendant is acquitted without having to present any evidence at all.
Example of a Failure to Meet the Burden of Proof
Ann is on trial for first-degree murder. The only key piece of evidence in Ann’s trial is the murder weapon, which was discovered in Ann’s dresser drawer during a law enforcement search. Before Ann’s trial, the defense makes a motion to suppress the murder weapon evidence because the search warrant in Ann’s case was signed by a judge who was inebriated and mentally incompetent. The defense is successful with this motion, and the judge rules that the murder weapon is inadmissible at trial. The prosecution decides to proceed anyway. If there is no other convincing and credible evidence of Ann’s guilt, Ann does not need to put on a defense in this case. The prosecution will fail to meet the burden of proof and Ann will be acquitted.
Inference and Presumption
Parties can use two tools to help meet the burden of proof: inference and presumption. Jury instructions can include inferences and presumptions and are often instrumental in the successful outcome of a case.
An inference is a conclusion that the judge or jury may make under the circumstances. An inference is never mandatory but is a choice. For example, if the prosecution proves that the defendant punched the victim in the face after screaming, “I hate you!” the judge or jury can infer that the punch was thrown intentionally.
A presumption is a conclusion that the judge or jury must make under the circumstances. As stated previously, all criminal defendants are presumed innocent. Thus the judge or jury must begin any criminal trial concluding that the defendant is not guilty.
Presumptions can be rebuttable or irrebuttable. A party can disprove a rebuttablepresumption. The prosecution can rebut the presumption of innocence with evidence proving beyond a reasonable doubt that the defendant is guilty. An irrebuttable presumption is irrefutable and cannot be disproved. In some jurisdictions, it is an irrebuttable presumption that children under the age of seven are incapable of forming criminal intent. Thus in these jurisdictions children under the age of seven cannot be criminally prosecuted (although they may be subject to a juvenile adjudication proceeding).
Circumstantial and Direct Evidence
Table 2.2 Comparison of Circumstantial and Direct Evidence in a Burglary Case
Circumstantial evidence indirectly proves a fact. Fingerprint evidence is usually circumstantial. A defendant’s fingerprint at the scene of the crime directly proves that the defendant placed a finger at that location. It indirectly proves that because the defendant was present at the scene and placed a finger there, the defendant committed the crime. Common examples of circumstantial evidence are fingerprint evidence, DNA evidence, and blood evidence. Criminal cases relying on circumstantial evidence are more difficult for the prosecution because circumstantial evidence leaves room for doubt in a judge’s or juror’s mind. However, circumstantial evidence such as DNA evidence can be very reliable and compelling, so the prosecution can and often does meet the burden of proof using only circumstantial evidence.
Direct evidence directly proves a fact. For example, eyewitness testimony is often direct evidence. An eyewitness testifying that he or she saw the defendant commit the crime directly proves that the defendant committed the crime. Common examples of direct evidence are eyewitness testimony, a defendant’s confession, or a video or photograph of the defendant committing the crime. Criminal cases relying on direct evidence are easier to prove because there is less potential for reasonable doubt. However, direct evidence can be unreliable and is not necessarily preferable to circumstantial evidence. If an eyewitness is impeached, which means he or she loses credibility, the witness’s testimony lacks the evidentiary value of reliable circumstantial evidence such as DNA evidence.
From Criminal Law, originally published by the University of Minnesota Libraries under a Creative Commons Attribution-NonCommercial 4.0 International license.