The criminal search is one of the important investigation measures for the criminal investigation unit to find out the suspect and collect the evidence of the crime.

刑事搜查是侦查机关为查获犯罪嫌疑人、收集犯罪证据所实施的一项重要侦查行为。

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The field audit and investigation Unit is responsible for conducting field audits and investigations on businesses and individuals with a view to combating tax evasion and avoidance.

实地审核及调查科专责实地审核和调查工作，致力打击逃税和避税的行为。

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The university opened an investigation of the Climatic Research Unit.

VOA: special.2010.01.19

The court then heard from Det Supt Christos Kalamatianos who led the 60-strong National Terrorist Financial Investigation Unit.

BBC: Detective April Casburn 'offered NoW leaks for cash'

The offence happened in September 2010 when Casburn, from Hatfield Peverel, was managing the national terrorist financial investigation unit.

BBC: April Casburn jailed for News of the World leak offer

Officers from the force's serious collisions investigation unit closed the road at the scene, near Longbridge Wharf, for several hours.

BBC: Pedestrian badly injured by police van in Bideford