The World Association of Detectives (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. In 1972 it had 400 members in 34 countries, growing to over 700 in about 60 countries in 1997. In 2013 it had nearly 900 members in over 70 countries.
W.A.D. promotes
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World Association of Detectives Wikipedia(Text) CC BY-SA