NEW officers who have never policed an Old Firm match will be taught sectarian songs ahead of this weekend's match between Rangers and Celtic.

Officers who have joined the ranks of Police Scotland since the last flashpoint derby will be briefed on some of the hate songs favoured by bigots.

It has been almost three years since the last Old Firm clash - but police say that will not be used as an excuse and have vowed to arrest anyone singing sectarian songs.

Senior officers will lay down the law to new recruits on which songs are considered illegal.

A police source said: "Obviously some of these songs are recognisable.

"But we will be making sure all officers involved in policing the match are aware of what is acceptable and what is not.

"If you sing an offensive, sectarian song, we'll arrest you."

'Rest days' for some officers in Glasgow have been cancelled ahead of the match and extra police will be on duty. It is feared the 1.30pm kick-off time for this weekend's game will give fans time to drink before the match and possibly fuel trouble.

The match is being shown on BBC1 Scotland and police are determined viewers, who are watching around the world, will not have to listen to sectarianism from the stands.

A Police Scotland spokeswoman said the match would be "policed appropriately".