PC Fisher claimed he had been overlooked for promotion because he spoke out against single-man patrols.

His father, also Douglas Fisher, said he wants the issue on the agenda at Tayside Joint Police Board, which is due to meet on November 13.

Mr Fisher sen has written to Shiona Hunter, director of law and administration at Angus Council responsible for giving administrative support and professional advice to the board, asking for the matter to be added to the business at the next meeting.

As yet he has had no confirmation his request will be met but he has received a letter of acknowledgement.

Tayside Police has previously said an independent inquiry would gain nothing and simply prolong the matter further.

Mr Fisher sen said, “They want to brush this matter under the carpet, but there are serious issues raised by the tribunal judgement surrounding their complaints department and the running of the force which need to be addressed.

“I want this on the agenda at the next meeting of the Joint Board on November 13. I want an outside force to look at the running of Tayside Police

“For Mr Bald (Deputy Chief Constable Willie Bald, who is responsible for the complaints department) to say there are no lessons to be learned from the tribunal’s findings is absolutely ludicrous.”

Constable Fisher is still the subject of an ongoing disciplinary hearing by Tayside Police, but he continues to serve as a police officer.

Since the tribunal’s judgement was published, Central Division commander, Chief Superintendent Ian Alexander, who gave evidence at the tribunal, has retired.

During the hearing Mr Alexander admitted PC Fisher’s opposition to the single-officer policing policy was a factor in him being turned down for promotion to sergeant and his subsequent employment tribunal claim had “damaged” the force publicly.