Before Cresswell’s arrest, several people, including those close to Ms. Simpson, had raised concerns about him.

He had already been convicted of assaulting a woman in 2010.

The Ombudsman’s investigation, which began in March 2021, resulted in a 1,400-page file being sent to the PSNI.

She found misconduct by a number of officers, and their cases were dealt with by the PSNI’s professional standards unit.

The inquest followed a number of complaints from Ms Simpson’s family relating to the failure of police to treat her death as a murder at an earlier stage.

They are taking civil action against the PSNI.

It appears that a number of other complaints relating to this matter have been lodged with the Ombudsman more recently.

They are now under investigation.