PSNI staff could strike at height of marching season in mid-July belfasttelegraph.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from belfasttelegraph.co.uk Daily Mail and Mail on Sunday newspapers.
Some PSNI officers have been advised to bring personal protection weapons to Mass following the police data breach, the head of an organisation representing Catholic officers has said.