Which form of evidence is often used to establish motive indirectly?

Circumstantial evidence is utilized to establish motive indirectly because it consists of evidence that suggests a conclusion rather than directly proving it. This type of evidence can imply a relationship between a suspect and a crime through various clues and connections rather than through direct observation or testimony. For instance, if a person's fingerprints are found at a crime scene along with their known association with the victim, it can suggest a motive without explicitly stating it.

Direct evidence, on the other hand, would provide straightforward proof of a fact, such as eyewitness testimony or a confession. Testimonial evidence typically refers to verbal statements made under oath regarding the facts of a case, while demonstrative evidence includes physical objects or visual representations that help illustrate facts in a case but do not suggest motive on their own. Thus, circumstantial evidence stands out as a key tool for establishing motive indirectly.