ABSTRACT
Anyone who has spent a few hours watching the tables in Las Vegas will realize that probability is a difficult concept for the human mind. We often use heuristics-and suffer from biases-when dealing with probability. Police officers find it particularly hard to think probabilistically. Because of their street experiences, they prefer black and white rather than shades of gray. Probability errors in criminal justice most often occur in the forensic sciences, but they can also happen in criminal profiling.
