The costs to the end of January 2008 for the inquiries are as follows:
Cost (£ million) The Bloody Sunday inquiry 181.4 The Robert Hamill inquiry 13.0 The Rosemary Nelson inquiry 24.5 The Billy Wright inquiry 13.2
An inquiry into the murder of Pat Finucane has not yet been established.
The Wright and Hamill inquiries are operating under the Inquiries Act 2005. The Nelson inquiry is operating under the Police (Northern Ireland) Act 1998. The Bloody Sunday inquiry is operating under the Tribunals Act 1921.