A Sinn Féin delegation has met the Northern Ireland Police Ombudsman, Mrs Nuala O'Loan, today to discuss the violence in Belfast's nationalist Ardoyne area following an Orange march last week.
The party claims the Police Service of Northern Ireland (PSNI) breached a ruling by the Parades Commission that loyalist supporters of the Orange Order should not return through the Ardoyne.
There were angry scenes the supporters were allowed by the police to walk through the area, although this decision was defended by officers policing the event.
Sinn Féin Belfast MLA Mr Gerry Kelly and party colleagues Ms Kathy Stanton MLA and Councillor Danny Lavery made up the delegation to Mrs O'Loan's office where they discussed the policing of last week's Ardoyne parade.
Mr Kelly also asked for an alleged assault on him by the PSNI resulting in a broken wrist to also be investigated.
Speaking after the meeting Mr Kelly said: "Last weekend in Ardoyne the PSNI overturned a Parades Commission determination and forced a UDA mob through three nationalist areas in North Belfast.
Obviously [Northern Secretary] Paul Murphy has to bear the responsibility for this. But the fact remains that he was being advised by the securocrats within the NIO and their influence could clearly be seen in the brutal tactics adopted by the PSNI against the nationalist community.
Mr Kelly said the PSNI operation had "hemmed in" the nationalist community in Ardoyne.
"Its purpose was to force an anti-Catholic parade along with leading unionist paramilitaries through a number of Catholic areas. This is not acceptable policing.
"We have asked the Ombudsman to mount a full investigation into the PSNI conduct in North Belfast and the procedures followed and individuals involved in making the decision to breach the Parades Commission determination."
A separate delegation led by the Upper Bann Assembly member, Mr John O'Dowd, was to meet the Police Ombudsman to discuss what Sinn Féin says is a similar breach of a Parades Commission determination in Lurgan on July 13th.