Decontamination of the crime scene means the elimination of all those elements that shouldn't be in the original scenario, like the body of the victim or evidence left behind; or police personnel or any other element that wasn't there at the moment the the scene was find for the first time. Also, the adaptation of the photographs to the lighting conditions in which the investigated event would presumably have been occur.

​

Its purpose is to allow a better understanding of the scenario to the judge or to facilitate the análisis of the picture just how it should have been taken if the photographer would proceed diligently (for example, if ther is police personnel on the scene where only should be the victim's body and the evidence).

​

This often envolves a challenge for both the judge and the party that must explain the manner in which the crime may occurred.

​

​

​