How events unfolded ...
February 1989:Belfast solicitor Pat Finucane murdered by UDA amid allegations of British army and/or RUC collusion in his murder.
September 1989:John Stevens, then deputy chief constable of Cambridgeshire Police, appointed to investigate collusion claims.
1992:UDA intelligence officer Brian Nelson identified as British army agent who tipped off his handlers about a plan to kill Mr Finucane.
June 1999:Former UDA quartermaster William Stobie, also a police informant, charged with the murder of Mr Finucane, but later acquitted.
December 2001:Stobie murdered.
June 2002:BBC's Panoramaprogramme provides details of undercover Force Research Unit and alleges an unnamed RUC special branch officer persuaded loyalists to murder Mr Finucane.
April 2003:Stevens III report concludes elements within the RUC and British army colluded with loyalist paramilitaries to murder Catholics in the late 1980s.
April 2003:Finucane family reiterates its call for a full, independent, public inquiry into Mr Finucane's murder.