Charlie Sarell, regional organiser for Unison is "not confident" that public want private firms to help police.
Chief Constable Chris Sims believes that getting help from private firms won't reduce policing quality across in the West Midlands.
Plans to contract some police work in the West Midlands to private companies will be discussed today. Chief Constable Chris Sims insists the force is not being sold off. West Midlands Police is also looking at sharing some units like firearms teams with the neighbouring Staffordshire forces.