1.18 Absence of Evidence is a legal term that refers to the lack of proof or evidence for a certain assertion or claim. It is often used in criminal cases to describe the lack of evidence or proof that a crime has been committed. The absence of evidence can also be used in civil cases to show that there is no proof for a certain claim or allegation. There are two main types of 1.18 Absence of Evidence: direct evidence and circumstantial evidence. Direct evidence is evidence that directly proves or disproves a certain claim. Circumstantial evidence, on the other hand, is evidence that does not directly prove or disprove a claim but may be used to draw an inference or conclusion.