The field of forensic psychology have seen many advancement and expansion since 1987. In order for forensic psychology to continue its development, carefully planning has to be taken into consideration to discuss on the ethical issues of forensic psychology, standardization of the training of forensic psychologist, and educate the public about the nature of forensic psychology.
Day and Howell (2002) reviewed on the effectiveness of psychological treatment for prisoners by measuring by the recidivism rate. Evidences have shown that by carefully selecting the most appropriate psychological treatment based on individual prisoner specific needs, the level of recidivism will decrease and thus proving the effectiveness.
In the case study of Metesky, it showed how psychological profiling has been useful in helping the police to identify the suspect. Even though it debated that it was also possible for an untrained to perform same level of profiling, a psychologist is able to link the profiling back to concrete research instead of just plain