TWO thugs went on a spree of drunken violence so terrifying they forced two shopworkers to lock themselves in a room for safety and a police officer to push his panic button.

Declan Gallagher, 22, and Craig Cannon, 35, have finally been jailed for two separate attacks a year ago in Clydebank and Dumbarton.

As reported by the Clydebank Post, on September 3, 2016 a group of youths and others went to the Nisa store in Mountblow Road, Clydebank, and asked to see CCTV footage relating to damage to a car.

The employee asked them to come back when the manager was in, and when they returned, Gallagher and Cannon were obviously under the influence.

Cannon pushed over a stand and started picking up items and throwing them around. A till toppled over and cans and bottles of alcohol were thrown at the two members of staff.

They pushed a panic button and then retreated to a store room and barred the door to protect themselves, Dumbarton Sheriff Court heard last week.

Cannon and Gallagher, both of Clydebank, made off with alcohol and later, at around 4.35am, police on patrol in Bonhill Road in Dumbarton saw the pair.

When they were approached by police officers, Gallagher headbutted one of the officers and Cannon ran at him, throwing punches at the constable’s face.

Other units were requested but Cannon continued to punch the PC, forcing him to press his emergency assistance button.