W.A.D. was founded in 1925. It is the International Association for Private Investigators and Security Service Organizations. The World Association of Detectives was formed as a joint venture by the combined membership of the World Association of Detectives and the International Secret Service Association. It is the oldest international association in its field. W.A.D. has members in 70 countries.
The W.A.D. requires that its members maintain the highest ethical practices in the profession. Members are restricted to those whose personal and professional backgrounds and business affiliations have strictly observed the precepts of truth, accuracy and prudence.