The request filed Monday stems from a DUI charge against state Rep. Cherelle Parker.
Municipal Judge Charles Hayden earlier this month decided to suppress evidence from two police officers who stopped Parker on April 30. The judge said the officers' testimony was unreliable.
In the court filing, Deputy Attorney General John Flannery says he's surprised the judge found the officers less credible than someone who failed an alcohol breath test.
Prosecutors also say Hayden should remove himself from the case because he and Parker are friends on Facebook. Prosecutors say at the very least, that creates an appearance of impropriety.