7 Tips to Avoid Leaving DNA Evidence
Many of us know that since the advent of DNA testing, it has become a prime tool in solving criminal cases. Crimes decades cold have been solved with advancements in DNA.
What is DNA?
DNA by definition is, a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information. In laymen’s terms, if you leave any at the crime scene you are fucked! Why?
Because, with the exception of identical twins, no two people have the same DNA. Therefore, DNA evidence collected from a crime scene can link a suspect to a crime, or eliminate a suspect in the same way that fingerprints are used. If police suspect your DNA is at the crime scene, but can’t get a sample from you, they can also find you guilty by comparing the DNA at the scene to DNA from a biological relative.
If there is no suspect, however, a DNA profile of the crime scene can be entered into the Federal Bureau of Investigation’s (FBI) Combined DNA Index System (CODIS), which allows police agencies to match DNA profiles with other profiles entered into local, state, and national databases to identify a suspect or link serial crimes. This means that if you leave your DNA and the police don’t initially suspect you, but your in the CODIS database, you can be found guilty of murder.
DNA can be passed though saliva, skin cells, semen, blood, and hair. That’s a lot of things to keep track of when committing a crime. So here are some tips to help you avoid leaving your calling card at a murder.
7 Tips to Avoid Leaving Your DNA as Evidence
1. Shave your head or wear a hair net, baseball cap or ski mask. Women, tie your hair back in a pony tail.
2. Don’t smoke cigarettes at the crime scene or pick up ALL of your butts
3. Don’t drink anything at the crime scene.
4. Don’t spit, sneeze or leave gum at the crime scene.
5. If you are going to use a knife, it is very possible your hand could get cut, so be sure to wear thick gloves to avoid leaving your blood.
6. Wear long sleeves, pants and a ski mask to avoid skin cells being left (a ski mask will also help in keeping your hair from being left at the crime scene.)
7. If the victim scratches at you, be sure to cut their fingernails to avoid you skin cells being left behind (don’t forget to take the clippings with you.)
8. If your DNA does show up at the crime scene, have a reason ready for why it is there – you stopped in for a drink of water, delivered a pizza aka any noncriminal reason you can think of for being near the victim and crime scene.
If the victim is someone you know, you don’t have to be as concerned with leaving your DNA as everyday interactions can explain away the evidence.
Stay Brutal and keep Your DNA to Yourself!!





From the Crime Scene to the Crime Lab

