Criminal investigators generally train through an associate's or bachelor's degree program in criminology, according to the Bureau of Labor Statistics (BLS). Associate's degrees in this field can be used as a stepping stone to bachelor's-level programs. These students familiarize themselves with criminal law and the sociological conditions that produce crime. In order to train investigators to properly conduct investigations, criminology programs may include classes on forensics and criminal psychology. Depending on their career interests, criminology students may eventually specialize in the statistical analysis of criminal trends. Alternately, they might choose to train in direct interaction with criminals in order to become rehabilitation counselors within the penal system. Students may become forensic scientists, police officers, attorneys, judges and detectives. Others will be eligible for training in federal agent programs, through which they may deal with counter-terrorism and drug enforcement initiatives.