The Individual Trait Theory is just as the name says a theory of criminology that states that certain personality traits can predispose one to crime.It has roots in Cesare Lombroso’s which states that criminals are throwbacks to a more priumanity, both physically and mentally.s with all theories, there are holes in the Individual Trait Theory. While it does explain biological and social factors contributing to one’s personality that can predispose a person to crime, there are many things it does not take into account, like situational decisions and the change in a person over time.