Sydney de Zoysa ( 1909 - October 20 , 1994 ) was a Sri Lankan senior police officer . A former Deputy Inspector General of Police ( DIG ) of Range II and Permanent Secretary to the Ministry of Internal Security , he was one of co-conspirators of the attempted military coup of 1962 . Born to Sir Francis de Zoysa , KC an Advocate and member of the first State Council and Ethel Perera Amarasekera Siriwardena , his brother Stanly de Zoysa was a former Cabinet Minister of Finance and a Member of Parliament . His uncle was Sir A. E. de Silva . He was educated at Royal College , Colombo and at Ceylon University College where he read economics and was an active sportsmen . While at university he joined the Ceylon Police Force as a Probationary Assistant Superintendent of Police and was sent to Tangalle District as his first duty station in 1937 . He went on to become a Deputy Inspector-General of Police . He became the first Director of the Police Training School that was re-established at Katukurunda , Kalutara in 1948 . Prior to his retirement in 1959 following the Bandaranaike assassination , he served as the DIG of Range II . After retirement he served as the Permanent Secretary to the Ministry of Internal Security . During police serviced he received the Ceylon Police Medal for Meritorious Service , Defence Medal 1939-45 , Ceylon Police Independence Medal and the Service Medal of the Order of St John
Bandaranaike assassination
Assassination of S. W. R. D. Bandaranaike
Sydney de Zoysa