To prevent the contamination of any evidence possibly left at the scene.
So that the evidence is not contaminated by anyone who was not there at the time of the offense. Contaminated evidence may render it unuseable in the lab and/or in court.
You want to secure the crime scene so that none of the evidence is tampered with and the chain of custody is never questioned
The most important prerequisite for photographing a crime scene is for it to be unaltered.
What are some of the steps that might be important to remember when securing a crime scene?
crime scene sketch
explain why the scientific method is an important to both forensic science and crime scene investigations.
study the scence of the crime and list important facts about the investigation
someone who investigates clues at a crime scene. they are one of the most important people in the crime lab.CSI's are crime scene investigators they photograph crime scenes and pick up potential evidence.
what route you took to the scene
The answer is in your question: contamination. To contaminate something is to adulterate it, to ruin it. In this case, it is the evidence that is ruined. Contaminating a crime scene is essentially making a difficult job performed by an often less than qualified group of people far more difficult than it should be or needs to be. It seriously reduces the potential to secure a conviction of whomever committed the crime at that scene. That, and you could be criminally charged with a variety of misdemeanor and/or felony complaints.
1. secure the scene 2. conduct interviews 3. examine the scene 4. photograph the scene 5. store evidence correctly 6. lable evidence correctly
very, veRY, VERY, VERY IMPORTANT!
primary crime scene
"Crime scene" refers to the physical location where a crime took place, including evidence and potential clues. "Scene of a crime" is a broader term that can refer to not just the physical location, but also the surrounding circumstances and events related to the crime.