Two senior Ulster Unionists are facing Orange Order disciplinary hearings after attending the funeral of Ronan Kerr.
Leader Tom Elliott and Assembly Regional Development Minister Danny Kennedy are to be summoned.
Constable Kerr died in April after a dissident republican booby-trapped bomb exploded under his car in Omagh, Co Tyrone.
Mr Elliott and Mr Kennedy attended his funeral in his home village of Beragh. Hundreds of police officers and members of the Gaelic Athletic Association attended the former player's mass.
Mr Elliott refused to comment tonight.
Mr Kerr was from a nationalist background and had only recently joined the PSNI.
A formal complaint was made about both men by a lodge in Sandy Row, south Belfast.
It will be dealt with at county level.
An Order spokesman said: "The complaints procedure will be a private matter."