Rule 131, Section 1: Two Different Evidentiary Duties
Rule 131, Section 1 distinguishes burden of proof from burden of evidence. Burden of proof is the duty of a party to present evidence on the facts in issue necessary to establish a claim or defense by the amount of evidence required by law. Burden of evidence is the duty of a party to go forward with evidence to overthrow prima facie evidence established against that party.
The distinction is functional. Burden of proof answers who must ultimately persuade the court on a material issue. Burden of evidence answers who must presently produce countervailing evidence because the state of the record already supports an adverse factual conclusion.
Both burdens operate only with respect to facts in issue. A fact is in issue when it is a material fact alleged by one side and specifically denied, avoided, or otherwise made material by the pleadings, pre-trial order, or governing law. A fact admitted, judicially admitted, stipulated, or conclusively presumed is ordinarily removed from the field of proof.
Burden of Proof
Burden of proof is the risk of non-persuasion. The party who carries it loses on the particular claim, defense, or issue if the evidence is evenly balanced or insufficient under the applicable quantum of proof.
As a general rule, the party who alleges an affirmative fact has the burden of proving it. A plaintiff must prove the material allegations constituting the cause of action. A defendant must prove affirmative defenses, counterclaims, cross-claims, third-party claims, and other matters in confession and avoidance. A party who relies on an exception, exemption, justification, excuse, waiver, payment, prescription, laches, estoppel, fraud, mistake, or other affirmative matter must establish the facts that bring the case within that matter.
Burden of proof is fixed principally by substantive law and the pleadings. It normally remains with the same party throughout the case because it is tied to the party's need to establish an ultimate fact, claim, or defense. It does not shift merely because the opposing party introduces evidence, cross-examines witnesses, or raises doubts about credibility.
The phrase amount of evidence required by law refers to the applicable quantum of proof. In civil actions, the usual measure is preponderance of evidence. In criminal cases, the prosecution must prove guilt beyond reasonable doubt because the accused is presumed innocent. In administrative proceedings, substantial evidence generally suffices. In particular issues governed by special rules or doctrines, the law may require a different degree of persuasion, such as clear and convincing evidence.
Burden of proof may attach issue by issue. One party may bear the burden on the existence of a contract, another on payment, another on prescription, and another on damages. The court does not decide burden in the abstract; it identifies the fact to be proved, the party asserting legal consequences from that fact, and the quantum required by the governing law.
Effect of Failure to Carry Burden of Proof
If the party with the burden of proof presents no competent evidence on an essential fact, or if the evidence fails to meet the required quantum, the claim or defense fails as to that fact. The failure is decisive even if the opposing party presents weak evidence, because the opponent has no duty to disprove a claim or defense that was never sufficiently established.
In a civil case, when the evidence on a material issue is in equipoise, the party with the burden of proof loses on that issue. Preponderance requires that the evidence as a whole be more convincing than the evidence opposed to it. Equality of evidence is insufficiency, not victory.
In a criminal case, the prosecution's burden of proof never transfers to the accused. The accused may rely on the presumption of innocence and on the weakness of the prosecution's evidence. When the accused invokes an affirmative defense, the accused may assume a burden to produce or prove facts supporting that defense, but this does not relieve the prosecution of proving all elements of the offense beyond reasonable doubt.
Burden of Evidence
Burden of evidence is the duty to go forward with proof at a particular stage of the trial. It arises when the opposing party's evidence, or a presumption recognized by law, has created a prima facie case or prima facie inference against a party.
A prima facie case is a state of evidence which, if unexplained or unrebutted, is sufficient to sustain a finding in favor of the party who presented it. It does not mean the fact is conclusively established. It means the evidence is enough to call for an answer.
Unlike burden of proof, burden of evidence may shift from one party to the other as the case develops. A plaintiff's evidence may initially create a prima facie right to relief. The defendant must then go forward with evidence to rebut, explain, avoid, or overcome it. If the defendant does so, the practical pressure may return to the plaintiff to strengthen the case or meet the new matter.
Burden of evidence is therefore dynamic. It depends on the present state of the record, the operation of presumptions, admissions, documentary evidence, testimonial evidence, and the strength of the inferences already established. It may shift several times within the same trial and even within the same issue.
How Burden of Evidence Arises
- From direct evidence: A witness testifies to a material fact, and the testimony is competent and credible enough to support a finding unless contradicted or discredited.
- From documentary or object evidence: A document, record, instrument, photograph, or object is admitted and supports a material inference against the opposing party.
- From admissions: A judicial admission, formal stipulation, or other binding admission may remove or narrow the need for proof and place the opposing party in a position where only avoidance or qualification remains.
- From presumptions: A disputable presumption supplies a prima facie fact until it is contradicted by competent evidence; the party against whom it operates must produce evidence to overcome it.
- From circumstantial evidence: A chain of facts may establish a material fact by reasonable inference, thereby requiring an opposing explanation if the inference is strong enough to be prima facie.
When burden of evidence shifts, the party against whom the prima facie case operates need not always prove the exact opposite of the asserted fact. It may be enough to destroy the prima facie force of the evidence by contradiction, impeachment, explanation, proof of another consistent fact, or proof that the inference does not logically or legally follow.
Comparison
| Point of Distinction | Burden of Proof | Burden of Evidence |
|---|---|---|
| Nature | Duty to establish a claim, defense, or ultimate fact by the required quantum of evidence. | Duty to go forward with evidence because a prima facie case or presumption stands against the party. |
| Question answered | Who loses if persuasion is insufficient? | Who must now produce evidence to meet the present state of the record? |
| Stability | Generally fixed throughout the case as to the issue assigned by law and pleadings. | Shifts as evidence is introduced and presumptions arise or are rebutted. |
| Basis | Substantive law, procedural rules, pleadings, and the nature of the claim or defense. | Prima facie evidence, presumptions, admissions, and the evidentiary posture at a given stage. |
| Failure | The claim, defense, or issue fails if the required quantum is not met. | The prima facie case may prevail unless rebutted, explained, or overcome. |
| Relation to quantum | Directly tied to the amount of evidence required by law. | Concerned mainly with production of evidence sufficient to meet or neutralize prima facie proof. |
Relation to Pleadings and Material Allegations
The pleadings identify the material facts on which the parties seek relief or avoidance. A material allegation essential to a cause of action must be proved by the party asserting it unless it is admitted. A material allegation supporting an affirmative defense must be proved by the party invoking that defense.
A specific denial usually joins an issue and requires proof by the party making the affirmative allegation. A mere negative pregnant, evasive denial, or ineffective denial may result in an implied admission, thereby reducing or eliminating the evidentiary burden on that point.
Negative allegations are not exempt from proof when they are essential to a claim or defense. However, when a negative allegation concerns a matter peculiarly within the knowledge or control of the opposing party, slight evidence may suffice to shift the burden of evidence, and the opposing party may be required to explain or produce contrary evidence.
Affirmative defenses admit the material allegations of the claim in whole or in part but avoid liability by new matter. Because the defendant seeks a legal consequence from those new facts, the defendant bears the burden of proof on the affirmative defense. Examples include payment, release, res judicata, statute of limitations, illegality, statute of frauds, estoppel, and lack of jurisdiction when factual matters are necessary to establish it.
Presumptions and the Shifting of Burden of Evidence
Presumptions are closely connected with burden of evidence. A disputable presumption stands as prima facie proof of the presumed fact until contradicted. It does not usually transfer the burden of proof on the ultimate issue; it shifts the burden of evidence to the party against whom the presumption operates.
When the adverse party introduces competent evidence sufficient to rebut the presumption, the presumption may cease to control, and the court decides the fact from the totality of evidence. The party with the burden of proof still bears the risk of non-persuasion unless a substantive rule provides otherwise.
Conclusive presumptions operate differently because they preclude contrary proof once the foundational facts are established. In that situation, the opposing party cannot merely meet a burden of evidence by contradiction; the contest is usually over whether the facts giving rise to the conclusive effect exist.
Operation in Civil Cases
In civil litigation, the plaintiff ordinarily carries the burden of proof on the cause of action: right, obligation, breach or violation, causation when material, and damages when recoverable. The defendant carries the burden of proof on affirmative defenses and counterclaims.
The plaintiff's initial burden of evidence is to make a prima facie case. If the plaintiff fails to do so after presenting evidence, the claim may be dismissed on insufficiency. If the plaintiff makes a prima facie case, the defendant must present evidence to defeat liability, reduce recovery, or establish a defense.
After both sides have presented evidence, the court determines whether the party with the burden of proof has met the required quantum. The shifting of burden of evidence during trial does not change the final rule that the party asserting the claim or defense must prove it.
Operation in Criminal Cases
In criminal prosecutions, the burden of proof rests on the prosecution to establish every element of the offense and the identity of the accused beyond reasonable doubt. This burden is a consequence of the constitutional presumption of innocence and remains with the prosecution from arraignment to judgment.
The prosecution also bears the initial burden of evidence to present proof sufficient to overcome the presumption of innocence and establish a prima facie case. If the prosecution's evidence is insufficient after it rests, the accused may obtain dismissal on the ground that the evidence does not support conviction.
The accused has no burden to prove innocence. However, when the accused admits the act charged but invokes an affirmative matter such as self-defense, alibi with supporting facts, exempting circumstance, justifying circumstance, or other avoidance, the accused assumes a burden to present evidence supporting that matter. The prosecution still bears the ultimate burden to prove guilt beyond reasonable doubt, including the absence of a justifying or exempting circumstance when the evidence properly raises it.
Where the defense merely denies the charge or attacks the credibility, admissibility, or sufficiency of prosecution evidence, the accused does not assume the burden of proof. The defense may prevail by showing reasonable doubt, not by establishing an alternative factual theory with preponderant evidence.
Operation in Administrative and Special Proceedings
In administrative proceedings, the complainant or initiating party generally bears the burden of proving the charge by substantial evidence, unless the governing law or regulation assigns a different burden. Substantial evidence is such relevant evidence as a reasonable mind might accept as adequate to support a conclusion.
In special proceedings, the party asserting the status, right, or authority sought to be recognized bears the burden of proof. A petitioner for probate must establish due execution and testamentary capacity as required by law; a claimant against an estate must prove the claim; and a person asserting heirship, guardianship, or other juridical status must prove the facts from which that status arises.
Connection with Admissibility, Relevance, and Weight
Burden of proof and burden of evidence concern the sufficiency and allocation of proof, not merely admissibility. Evidence may be admissible because it is relevant and competent, yet still be too weak to satisfy the burden of proof. Conversely, a party may have the burden of proof but fail because the evidence offered is excluded, incompetent, hearsay without exception, unauthenticated, or otherwise without probative value.
Relevance determines whether evidence has a logical tendency to prove or disprove a fact in issue. Admissibility determines whether the evidence may be considered by the court. Weight determines how convincing admitted evidence is. Burden determines which party must suffer the consequence when the evidence does not persuade to the required degree.
Practical Consequences in Trial
- A party with the burden of proof must identify each essential fact and present competent evidence for each one; proof of some elements does not cure failure to prove another essential element.
- A party facing a prima facie case must decide whether to rebut the evidence, explain it, impeach the source, present contrary proof, invoke a legal exclusion, or show that the inference is insufficient.
- A party who relies solely on cross-examination may defeat burden of evidence if cross-examination destroys the prima facie case, but mere denial or weak impeachment may leave the prima facie case standing.
- Admissions, stipulations, and pre-trial orders may narrow the facts in issue and thereby reduce the matters on which evidence must be produced.
- Presumptions can satisfy the initial burden of evidence, but they are not substitutes for the ultimate burden of proof when the presumption is effectively rebutted.
- Objections to evidence are distinct from burden; excluded evidence cannot carry a burden, and admitted evidence still must be weighed for sufficiency.
Essential Synthesis
Burden of proof is the ultimate duty of persuasion on a claim, defense, or material issue, measured by the quantum required by law. Burden of evidence is the shifting duty of production that arises when the record contains prima facie evidence against a party. The first usually remains fixed; the second moves with the evidentiary situation. The first determines who loses when persuasion fails; the second determines who must act when the present proof is enough to call for an answer.