Mike Langdon joined the Isle of Man Constabulary from Merseyside Police in July 2005 as Deputy Chief Constable. He has a Masters Degree in Leadership Development from the University of Hull. Mr. Langdon has more than 30 years' police service, having started in Lancashire Constabulary in 1975, rising to become Chief Superintendent as the Head of CID in Merseyside, then the Area Commander for North Liverpool, one of the largest command units in the UK.

His command experience extends to serious and organised crime investigations including murders and firearms as well as policing experince in deprived areas with operational demands such as policing prisons and Premier League football grounds. Since his arrival on the Island he has been primarily involved in the modernisation of the Constabulary with emphasis on Neighbourhood Policing and localism as well as the development of professional standards. He is the holder of the prestigious Queen's Police Medal, awarded in 2004 by Her Majesty the Queen in recognition of the impact made on serious and organised crime in Merseyside and the performance improvements in the North Liverpool area.

Mr. Langdon became Chief Constable on January 1, 2008.

Gary Roberts joined the Isle of Man Constabulary in 1984 and worked as a Constable in Douglas, Onchan and CID before being promoted to Detective Sergeant in the Fraud Squad in 1996. In this post he led the Constabulary's response to the UK Government's Edwards Inquiry into enforcement and financial supervision in the Crown Dependencies.

In 1999 he was promoted to Inspector, taking responsibility for strategic planning and media relations, whilst also acting as staff officer to the Chief Constable. In 2002 he was further promoted to Chief Inspector, becoming responsible for uniform operations.

In January 2005 he became Superintendent with responsibility for all operational policing across the Island. In this role he had responsibility for implementing the neighbourhood policing model. Additionally he is a Senior Investigating officer, a firearms commander and is a leadership team advisor for the renowned Work Foundation.

Mr. Roberts became Deputy Chief Constable on January 1, 2008.