A GUN cop was left needing emergency surgery after a police station prank went wrong.

The horror incident left two officers injured after one mistakenly doused the other with industrial strength cleaner while washing police cars.

Police Scotland control room and operational support complex in Glasgow.

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The cops were burned at the Helen Street Operational Support HQCredit: Alan MacGregor EwingTwo Police Scotland vehicles.

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They suffered serious chemical burns while washing their patrol carsCredit: AlamyPolice Scotland control room and operational support complex in Glasgow.

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The incident is being probedCredit: Alan MacGregor Ewing

The incident happened at Police Scotland‘s Operational Support HQ on Helen Street, Glasgow, where the force’s control room and elite units are based.

Officers were waiting to wash their vehicles on May 4 when another cop skipped ahead prompting one to spray him with an unmarked container holding what was believed to be water.

Sources claim the officers were throwing water at each other in a “playful” manner before.

However, when cops returned to work they reported a burning sensation and they were taken to hospital.

One cop was left with injuries so severe he needed a skin graft on his upper legs.

While another was left with minor burns.

A probe has now been launched amid claims the substance, used for cleaning alloy wheels, was being stored in an unmarked container — leaving the officers oblivious to danger.

A source said: “No one knows how this could have happened but the traffic guys have been told off about bottles with dangerous chemicals not being clearly marked.

“One of the guys was so badly burned he needed a skin graft.

“The bosses are looking into it but it has them really concerned.

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“Someone will be getting sacked over this.”

Police Scotland’s Professional Standards Department are currently probing the incident.

A force spokesperson said: “On Sunday, 4 May 2025, two male officers were injured after coming into contact with a chemical liquid whilst cleaning a police vehicle in Glasgow.

”Both officers were treated in hospital and released. The incident is being referred to our Professional Standards Department.”

Crime scene with police tape and equipment.

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The area where the gun cops were burned has been cordoned offCredit: Supplied