Examples of police design themes in action:

Victoria, TX
Normal page: http://www.victoriatx.org/departments/community-center
Police page: http://www.victoriatx.org/departments/police
Parks page: http://www.victoriatx.org/departments/parks-recreation
Environmental page: http://www.victoriatx.org/departments/environmental-services

Roswell, GA
Normal page: http://www.roswellgov.com/discover-us/cultural-arts-center
Police page: http://www.roswellgov.com/government/departments/police

Pearland, TX
Normal page: http://www.pearlandtx.gov/i-want-to/helpful-links/permits
Police page: http://www.pearlandtx.gov/departments/police

And here are some un-branded Police Departments that have worked hard to give their department page its own look and feel anyway:

Santa Clara, CA: http://santaclaraca.gov/government/departments/police-department
Ames, IA: http://www.cityofames.org/government/departments-divisions-i-z/police
Provo, UT: http://provo.org/city-services/new-provo-police