Forensic psychologists can be described as psychologists which apply their knowledge of psychology for criminal investigation.
The field of forensic psychology, though has its own difficulties as one needs a lot of experience to get the job, but is worthwhile.
This field is enjoyable as it lets a psychologist to psychologically assess individuals which may or may not be involved in a certain criminal event. The reward of the job is having the feeling of gratitude and satisfaction as one was able to solve a crime mystery and offer justice.
They would know if they see anything like traces of water or anything else that would be nessecary for a living organism to have. They look for these with technology like the hubble telescope as well as the drone on Mars to gather as much information as possible.
