David was born  1914 in Warsaw  to Milkha Palevsky, of Lithuania, and Avraham Sokolik of Ukraine. His grandfather, Issac Palevsky was a journalist in Sokolov’s “Hatsfira”. He came to Israel with his family 1923, aged 9. They lived first  in Jaffa, where they owned a hotel and moved later to Tel-Aviv. He studied at  ‘Tahkemoni’ school and  ‘Herzliya’ High-School. From his youth he was a member of Beitar. He joined the National Defence in 1931 and then Etzel. In 1932 he became the pupil and assistant of the first Hebrew detective, David Tidhar, joining his office as an associate. Later he left to study detective work and forensic sciences in London and Chicago. When Etzel split 1940, he joined Lehi working mainly in Intelligence. He was arrested several times by the British; in 1940 he was arrested and placed under administrative custody in Mizra and Latrun Prison Camps for five years. He served in the IDF’s Military Police as a Major, contributing his knowledge to establishing prisoners’ camps and establishing  patterns for investigating enemy soldiers. When Tidhar retired, David founded the investigations bureau “Tidhar & Partners – Information Services”. He later became one of the founders of “Civil Intelligence” investigation company. He engaged in journalistic  writing  for local and foreign newspapers. He consistently wrote for “Hamivrak”, the ‘Fighters Movement’ paper and edited the “The Modern Detective” publication. After retirement, he began lecturing to security personnel, private investigators, students, and at international conferences. He initiated the proposal for the “ Private Investigators Law” and established the Union of Private Investigations Companies, serving as its president. He was elected president for life of “International Detectives” and was  among the founders of Tel-Aviv’s “Beit-Hachayal” center for soldiers. He was  president of the “Gideon” Bureau, member of the “Order of Jabotinsky”. He was among the initiators of the acquisition of “Beit-Yair”. He also volunteered for many positions. David passed away  on January 12, 1993. He left behind wife Tova nee Lipschitz, his two daughters Dina and Ze’eva, four grandchildren and two great-grandchildren.