A private investigator or private detective (often abbreviated to PI and informally called a private eye), is a person who can be hired by individuals or groups to undertake investigatory law services.
Private detectives/investigators often work for attorneys in civil cases. In most states, a license is mandatory. Like with an attorney or doctor, the State has mandated that certain qualifications, training, and experience be required for licensure to protect the public from those who do not have the experience or qualifications to do the job correctly.
A private investigator’s training is usually varied and tends to focus on a certain area, again much like a lawyer. Often times that experience comes from law enforcement, military and research backgrounds. The crux of a private investigator’s capability is to take whatever information their client has and go find whatever information or evidence the client needs.
The work that a private investigator does is strictly confidential and stays between you and them.