Police Quest 3 was released by Sierra in 1991. Similar to Police Quest and Police Quest 2, it is produced by ex-policeman Jim Walls as well.
Police Quest 3 is the first in the series to use Sierra'a point-and-click navigation system. It have nicely done 256-color VGA graphics and support major sound cards.
In Police Quest 3, we again play Sony Bonds. Following the death of Bains, Sonny and Marie are getting married.
Promoted once more, Sonny now has to deal with rampant crime as a drug cartel begins operating in Lytton and evidence of a satanic cult starts to appear. Now is the briefing room, Sonny no longer being briefed, but has to brief others!
When Marie is stabbed in a mall parking lot, Sonny's police work becomes personal.
Sonny must deal with a partner with questionable ethics as well as find patterns in crime to find his next lead. The Bains family also plays a role in this game.
You can download Police Quest 3 and its manual and walkthrough here.