There are seven police districts in Washington, DC, and each police district is divided into three sectors, which are groups of Police Service Areas (PSAs). Each police district has between seven and nine PSAs. Every resident lives in a PSA, and every PSA has a team of assigned police officers and officials.The Metropolitan Police Department (MPD) is fully committed to ensuring the safety and well-being of every person who lives, works, and visits the District. That commitment includes those members of our community who are served by MPD's Special Liaison Branch. The Department’s Special Liaison Branch (SLB) is a model for community policing in its work with historically underserved communities.Learn more about MPD patrol services at mpdc.dc.gov/patrolservices and special liaison units at mpdc.dc.gov/slb.