Colonel DONALD CURRIER (Advisor to Iraqi Police, Iraq): My unit deals with the local police.

NPR: Iraqi Police Struggle with Rule of Law

Now a tactical advisor to the Metropolitan Police's SO19 firearms unit, Mr Cahill said the MBE was "quite a surprise".

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He has appointed an advisor to draw up a new strategy for the police's estate.

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He's an advisor who lives with this unit of Iraqi National Police.

NPR: On Patrol with the Iraqi National Police

Mr Chapman is a former deputy director of the UK Border Agency, a former Metropolitan Police officer and he has spent the last two years working as a senior security advisor for the London 2012 Olympic and Paralympic games.

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