A private investigator is a detective that is hired directly by a group or individual to undertake a thorough investigation into a particular matter. Usually these matters are civil cases related to infidelity, insurance fraud, child custody, domestic abuse or other family type cases that go to civil court.
Oftentimes, the person who hires the private investigator is going to be an attorney representing one of the parties involved in the case. For example, let’s say a married couple is going to get divorced because the husband believes his wife is cheating on him. If the wife denies cheating, then the husband will need proof in order to have grounds for the divorce. Therefore, the husband, or the husband’s attorney, will hire the services of a private investigator in order to gather proof that the wife is cheating.