Why doesn't the justice department act? Where are they?

Paso Robles CA pays police chief $250k to leave job after complaints of sexual harassment & ticket quotas [0] http://bit.ly/GDXINy

 Yakima WA gang unit leader subject of unspecified investigation after other unspecified misconduct substantiated [4] http://bit.ly/GLiaOh

 DeKalb Co GA police sgt subject of state investigation for allegedly talking rape victim out of charging his pal [0] http://bit.ly/GJV23x

 Colstrip MT police chief w/history of complaints suspended while investigated for another unspecified complaint [2] http://bit.ly/GJUr1Y