Presumption of Innocence: This is a principle that is used in criminal law and is designed to protect the accused from being convicted of a crime without sufficient evidence. It requires that the prosecution must prove beyond a reasonable doubt that the defendant is guilty of the crime in question. There are two types of presumption of innocence: the legal presumption of innocence, which is a presumption that is established by law, and the constitutional presumption of innocence, which is established by the U.S. Constitution. Burden of Proof: This is a legal concept that is used in criminal law and civil law in order to determine which party has the responsibility of proving a point or allegation. In criminal law, the burden of proof usually rests with the prosecution, who must prove beyond a reasonable doubt that the accused is guilty of the crime in question. In civil law, the burden of proof usually rests with the plaintiff, who must prove that their claim is more likely true than not true. Reasonable Doubt: This is a legal standard that must be met in order for a defendant to be found guilty of a crime. It requires that the prosecution must prove that the defendant is guilty beyond a reasonable doubt, which is a higher standard than the preponderance of the evidence, which is a lower standard. In other words, if there is any reasonable doubt as to the defendant’s guilt, then the defendant must be acquitted.