What kind of items might be considered documentary evidence in an investigation?

Documentary evidence plays a crucial role in investigations as it consists of any tangible items that document information relevant to a case. This can include a broad range of materials that serve to establish facts or provide context. Personal letters and financial records are excellent examples of documentary evidence because they can offer insights into a suspect's motivations, relationships, or financial dealings that may pertain to the crime being investigated.

For instance, personal letters may reveal correspondence that highlights relationships or conflicts involving individuals tied to the case, while financial records may show evidence of transactions that could suggest illegal activities or motives. Their incorporation into the investigative process helps create a comprehensive understanding of the circumstances surrounding the crime.

Other options may appear relevant but do not fit into the category of documentary evidence in the same way. Official reports from authorities, public statements from witnesses, and security footage are also critical but are categorized differently based on their nature and source. Official reports are typically produced by law enforcement or legal entities, witness statements are verbal or written accounts of what someone saw or heard, and security footage is considered physical evidence rather than documentary evidence because it involves visual recordings rather than written or documented information.