Following that ruling, ministers removed the Royal Military Police from IHAT and replaced them with Royal Navy Police officers.

BBC: Iraqis claim British troops 'acted with brutality'

Lawyers for the Iraqis say the Iraq Historic Allegations Team (IHAT), created by the UK government, is investigating only individual cases.

BBC: Iraqis claim British troops 'acted with brutality'

The Court of Appeal ruled last year that IHAT did not have "the requisite independence" and said ministers had failed to comply with obligations under human rights legislation.

BBC: Iraqis claim British troops 'acted with brutality'