The Anna Police Department is a full service municipal law enforcement agency providing the citizens of Anna, Texas with police protection 24 hours per day, 7 days per week. Law enforcement services are delivered through our Patrol and Criminal Investigation divisions which are supported by our Records division and administration team. Dispatching services are provided by the Collin County Sheriff's Office central 911 center. Persons arrested for criminal offenses by Anna Police Officers and Detectives are held in custody at the Collin County Sheriff's Office Detention Center. Animal Control is managed by Collin County Animal Services.