Greater Manchester Police (GMP) is cutting 250 civilian jobs, including IT, in an effort to reduce costs.
The police force has been hit hard by central government funding cuts, and has said it needs to cut 1,387 police officers and 1,557 civilian roles to achieve savings of £134 million over the next four years.
The announcement comes just days after Manchester City Council revealed that it is offering voluntary redundancy packages to 2,000 staff.
Of the 250 civilian workers facing compulsory redundancy, the Manchester Evening News reported that most of the staff work in IT, human resources and catering.
Chief Constable Peter Fahy of GMP, said: “The reductions we have to make are extremely painful for the staff involved and we have worked hard to keep them informed.
“We are determined to look at every pound we spend and do all we can to preserve the service to the public through the efficiencies we are making.”
A spokesperson for Unison told the BBC that the union would continue talks with the police force, asking it to consider options as more people taking up voluntary redundancy.
Jim Moodie, from Unison union, told the Manchester Evening News: "It means now that police officers are more likely to have to carry out those roles. The net effect is that they won’t be solving crimes and protecting the community as they have in the past."
He added that meanwhile, the union would be looking to continue talks with the police force, asking it to consider options such as allowing more people to take up voluntary redundancy.