Police Scotland staff have rejected a pay offer and warned they will take industrial action if a better deal is not tabled.

The force’s forensic specialists, custody staff, emergency control room workers and those in a number of other roles represented by the union Unison voted to reject the Scottish Police Authority’s offer by 63%.

The union said the offer would give those earning up to £28,296 an additional £1,344 per year, while those paid more would receive a 4.75% increase.

There would also be a 4.75% increase to disruption allowances, unsocial hours payments, and a handful of other allowances, Unison added.

Other roles affected by the pay offer include call handlers, crime scene officers, counter-terrorism specialists, cyber-crime investigators, digital forensic staff and CCTV operators.

Unison said on Friday the SPA’s offer failed to address the cost-of-living crisis or recognise the contribution the staff make to keeping communities safe.

Unison Scotland branch secretary David Malcolm said: “Police staff are standing up for fair pay and are prepared to take industrial action, if necessary.

“The Scottish Police Authority’s offer does not reflect the impact that rising prices are having upon pay packets, nor the critical part police staff play in keeping us all safe.

“Police staff do the painstaking investigations to ensure criminals can be prosecuted successfully and are the first people the public speak to when they call 999. It’s important we invest in them and make sure their pay does not lag behind.”

Unison Scotland’s lead for police staff, Deborah Clarke, added: “This is the first time police staff have voted for industrial action since the creation of Police Scotland a decade ago.

“This sends a clear message that staff need to be listened to and respected for the essential work they do.

“The SPA needs to put forward a revised offer. Unison remains committed to finding a solution to this dispute.”

Police Scotland and the SPA both said: “We are aware of the outcome of the union ballots. We will update staff on the next steps in the coming days.”