What term refers to something that is known to be true?

The correct answer is "Fact" because a fact is defined as a statement or assertion that can be objectively verified and is universally accepted as true within a specific context. In criminal investigations, facts are critical as they form the basis for evidence and corroborate claims. They are grounded in reality and can be supported by data or observations, setting them apart from other terms such as hypothesis, assertion, or theory, which often involve speculation or assumptions rather than confirmed truths.

For example, in a criminal investigation, a fact might be the time a crime was recorded on surveillance footage, which can be proven through evidence, unlike a hypothesis which would propose a potential explanation of why the crime occurred. Understanding what constitutes a fact is essential for building a credible case and ensuring accurate reporting and analysis in law enforcement.