Celtic fans from as far away as Russia and New Zealand sent a furious letter to the club's board rejecting the rumoured appointment of cop Bernard Higgins - insisting he had ruined lives due to his policing policies.
Controversial Mr Higgins was heavily involved in setting up the Offensive Behaviour at Football Act, which was introduced in 2012 in a bid to clamp down on sectarianism, and was overturned by the Scottish Parliament in 2018.
Critics claim it criminalised fan groups and led to dawn raids and harassment while failing to tackle bigotry which it was intended to do.
He is now tipped for a security role at Paradise which has caused consternation among fans who have sent 100 letters to the club's chief executive Michael Nicholson saying that Mr Higgins caused "irreparable damage" to the lives of Celtic supporters.
The Fans Against Criminalisation campaign branded the legislation a "genuine danger to civil liberties" and successfully got it overturned.
The group has lobbied against the appointment of Mr Higgins which has been met with widespread horror from fans.
In a letter to Mr Nicholson, the fans groups have stated: "We, the undersigned wish to state our objection to the rumoured appointment of Bernard Higgins as a member of Celtic FC's security staff.
"In his role as assistant chief constable with Police Scotland and as the national strategic lead for football, Higgins has been responsible for the policing of football fans for almost a decade.
"In the period since he was appointed to this position, the policing of football matches has changed dramatically, with the introduction of intrusive surveillance, the widespread use of football banning orders and a determination to arrest fans on spurious charges.
"This has caused irreparable damage to the lives of many Celtic fans as well as to the relationship between the supporters and Higgins himself.
"It must be made known that we will refuse to recognise or engage with Higgins if he is appointed, as his history makes him an unsuitable candidate to be tasked with the responsibility and security of Celtic supporters.
"We ask you to address this issue and to reconsider such an appointment."
Fans groups that have signed the letter have coming from across the world, including England, Romania, USA, New Zealand, even Russia.
