Two of the cases - the killing of two Royal Ulster Constabulary officers and the killing of Northern Ireland Lord Justice Maurice Gibson and Lady Cecily Gibson - relate to allegations of collusion by the Garda Síochána and these reports were submitted to the Irish government.
Two of the investigations, involving the deaths of two Royal Ulster Constabulary officers and Lord Justice Maurice Gibson and Lady Cecily Gibson, are linked to accusations of collaboration between the Garda Síochána and these incidents. These findings were presented to the Irish government.