What type of documents provide information required for a thorough death investigation?

Necessary records are integral to a thorough death investigation as they contain essential information about the deceased, the circumstances surrounding the death, and any relevant medical history. These records can include medical records detailing prior health issues, autopsy reports highlighting causes of death, and other documentation such as legal papers or prior incident reports that may provide context to the death.

While surveillance footage, witness testimonies, and police reports can all contribute valuable details to a death investigation, they serve more as supplemental sources of information rather than foundational documents. Necessary records provide a basis of facts that help investigators understand what took place leading up to the individual's death. This complete and accurate information is vital in establishing the cause and manner of death, making these records crucial in the investigative process.