The Parker Police Department began the process of Advanced Law Enforcement Accreditation nationally, through the Commission on Accreditation for Law Enforcement Agencies (CALEA) 

in 2009. CALEA provides credentialing services for law enforcement agencies, public safety communications agencies, as well as public safety training academies. The Parker Police Department received certification for Advanced Law Enforcement Accreditation in March of 2013, and in 2018, received Accreditation award with Excellence.  The current accreditation model is assessed annually, with a final on-site review every four years.