The West Allis Police Department provides law enforcement and crime prevention services. The department employs more than 158 staff members. It operates patrol, traffic, crime prevention and criminal investigations divisions. Its records division processes and manages records, clearance letters and reports, and arrest and search warrants. The West Allis Police Department also has a crisis response unit that operates during emergency situations and hostage crisis. The department intervenes in cases of theft, burglary, sexual assault, child abuse, serious crime, domestic violence and narcotics trafficking. It conducts investigations, gathers evidence, and interviews suspects, victims and witnesses. It responds to emergency and nonemergency calls for service. In addition, the West Allis Police Department organizes several safety-related training sessions for the general public. The department is headquartered in West Allis, Wis.