He previously served as Commandant-General of the RAF Regiment, and as a senior civil servant as Director Security and Business Continuity for the Home Office.
[2] On 15 September 1974, Drissell was commissioned into the Royal Air Force Regiment as an acting pilot officer.
[1] He retired from the Royal Air Force in April 2007 after 32 years service.
[11] In March 2008, Drissell joined the Home Office as a senior civil servant in the appointment of Director Security and Business Continuity.
[2][12] In July 2004,[13] he became a non-executive director of the children's charity Plan UK.
[11] He had been a trustee of City and Guilds from 2012 until 2014 [1] In May 1995, Drissell was shot with seven bullets in an armed mugging as he returned to his house in Wandsworth Road from the Ministry of Defence.