People who have never been to a real crime scene or who do not visit them frequently may not be knowledgeable about the proper way to behave at one. Crime scene etiquette is rarely discussed at dinner parties.
The following is a list of things you should NOT do at a crime scene.
1. Practice your art by drawing a whole family of chalk figures. The original one is not lonely. He doesn’t need friends. And if investigators have already chalked out the scene, definitely do not remove any of them.
2. Make a mess. The crime scene may already look like a mess and you might think that a little extra won’t hurt anyone, except it actually might impede the police investigation. Let the police do their job and wait for the crime scene cleaning experts to do their thing after.
3. Scream “It was me!”. Confessing to a crime you actually did commit will save everyone lots of time and money and they will appreciate that. Confessing to a crime you did not commit can increase your chances of getting booked for a different crime, such as obstructing official police business.
4. Hide the gun and say “Scavenger hunt!” While scavenger hunts are loads of fun for picnics and proposals, the police officers will not be in the mood for fun and games. In fact, they may suggest that something—or someone—other than the murder weapon should get lost.
5. Grab a snack from the fridge. Even if it is blatantly obvious that the murder weapon was something like a gun or knife, you can never be sure that “poison pie” wasn’t the back-up plan.
While this will get you off to a great start in your quest for crime scene etiquette knowledge, it is certainly not exhaustive. If you are wondering whether a certain behaviour is acceptable or not, your best bet is to simply stay out of the way and let the professionals do their job.