Serious Organised Crime Agency: Manpower Damian Green To ask the Secretary of State for the Home Department how many liaison officers are employed by the Serious Organised Crime Agency; and what their average annual salary is. Mr. Alan Campbell As of 1 June 2009, the Serious Organised Crime Agency had 104 liaison officers based overseas. Liaison officer grades and salaries vary according to the post and responsibilities, but the majority of liaison officers are on a salary in the range of £40,586 to £54,050.