Senior Conservative MP David Davis has called for police officers to wear a camera and microphone while on duty in the wake of the "plebgate" row.
Mr Davis, an ally of Andrew Mitchell and a former shadow home secretary, wrote in The Times (£) that such technology could help curb the use of force by officers and also "help to defend police officers who have vexatious claims made against them".
He said there is "a crisis of ethics" within the service and called for "root-and-branch reform of policing culture", starting with a Government-appointed Royal Commission to investigate their conduct.
"Regrettably it appears that the Mitchell case is merely a high-profile example, not an isolated one", he added.
David Davis has said that the statement from three police officers is "simply not good enough".
The officers from West Mercia, West Midlands and Warwickshire Police Federation representatives issued a statement regarding their meeting with Andrew Mitchell.
Former Conservative shadow home secretary David Davis has said Andrew Mitchell had been the victim of "a really serious injustice" and should be restored to the ministerial ranks.
Mr Davis also criticised the Cabinet Secretary, Sir Jeremy Heywood, and the Met Police for failing properly to examine the evidence when the allegations first emerged:
The new group is intended to unite grassroots Tory activists and more senior politicians who;
As well as Mr Davis and Dr Fox, other MPs named as backers are Conor Burns, Robert Halfon, Priti Patel and Dominic Raab.
Two Tory big beasts are launching a group campaigning for "radical" policies, amid pressure on David Cameron's leadership.
David Davis and Liam Fox will unveil Conservative Voice, urging the party to show "serious ambition".
Although organisers insist the group will work alongside the leadership, the move comes with the Prime Minister struggling to placate Conservative traditionalists from two former front-benchers who ran against him for the party leadership.