SINN FEIN president Gerry Adams has complained to the Police Service of Northern Ireland (PSNI) about certain aspects of his "interrogation" in connection with the murder of IRA victim Jean McConville.

Mr Adams was released on Sunday night after four days of questioning by detectives about the 1972 murder of the mother-of-10 and his alleged links with the IRA.

The 65-year-old former West Belfast MP rejects the allegations of two former republican colleagues that he ordered Mrs McConville's abduction and killing, and in an article for The Guardian said his "sham" arrest had damaged the peace process.

He said the PSNI's case seemed to rest on proving he had once been a member of the IRA and when he was released he made a formal complaint about aspects of his interrogation.