Myth: Crime scene working conditions are consistent
Hopeful CSTs often don’t consider the difficult working conditions they are likely to face while collecting evidence. For example, painstakingly gathering miniscule samples is a whole different ballgame in the snow or around a crash site baking in the sun. McKenna says you rarely see an accurate depiction of the harsh and uncomfortable working conditions of a crime scene.

“The scenes are often dirty, sometimes bloody, hot, cold or even outdoors in bad weather,” he explains. “In many cases it is also necessary to crawl on the floor, under a car or otherwise work from awkward, dirty or uncomfortable positions.”