Police photography advice clip (Thea)

I was looking into information about police photography as within the first section of our two minute clip we will be using police/forensic photographs of a dead body to set the storyline/main feature of the film. Although this clip does not show examples of police photographs used within film or television it was useful for reminding that police photographs cannot be biased and must show anything that could be important such as bruises cuts etc which we already had planned.
Although we are not displaying a police report/profile of the situation we must still make the photographs look authentic and believeable to be able to be used as evidence.