Why are multiple forms of documentation used at the scene of a mysterious death (note taking, sketching, photography, or videography)?

There are reasons why multiple forms of documentation are used at scene of a mysterious death they include;

By gathering as much information as possible, destruction of evidence is prevented, there will now be a lot of information to work with in other to arrive at the cause of the mysterious death.

By documenting the crime using various  forms like note taking, sketching, photography or videography, will lead to an admissible evidence in a court of law.

Thus, it is important to use various forms of documentation so as to have as much information as possible, which can be used as evidence in a court of law.

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They help reconstruct what happened the most precisely