Investigation is a job of detectives and private investigators that are highly professional and skilled in finding what is missing or lost. Private investigation is not an easy job; although it looks easy but it needs special training. It is a field that needs proper guidance and special courses are offered to become a private investigator. It is a separate field that offers graduation, after completing the course of graduation one can become licensed detective. Many institutions are established for its proper training in countries like Australia, USA and UK because of increasing crimes and missing of persons. One can get admission in institution that offers specific courses of private investigations. Investigation is a job that not only describes finding a person or something like that; it is in fact a job that deals with many rules and regulations. To follow the laws made by detective companies are strictly imposed on detective agents because they should abide by the rules.