The Practical Police Course (now Police Pistol Combat) was developed in the late 1930s by the FBI to add some realism to training and qualification, previously done in conventional bullseye style. It eventually turned into a sport with specialized guns like this.
There are a number of different matches for stock and custom guns, revolver and auto.
The current target is the B27 humanoid shot at ranges from 7 to 50 yards. The ten ring is an oval 4x6"
Here is the main event:
7.7 Match 5 - The NRA National Police Course.
Stage 1: 7 yards, 12 shots double action standing without support. Time limit 20 seconds including time to reload.
Stage 2: 25 yards, 6 shots kneeling; 6 shots standing left hand with support from behind barricade, 6 shots standing right hand with support from behind barricade, all fired double action. Time limit 90 seconds, including time to reload.
Stage 3: 50 yards, 6 shots sitting; 6 shots prone; 6 shots standing left hand with support
from behind barricade; 6 shots standing right hand with support from behind
barricade, all shots may be fired single or double action. Time limit 2 minutes and 45 seconds including time to reload.
Stage 4: 25 yards, 6 shots double action standing without support. Time limit 12 seconds.
In 1978 I got a state trophy for First Sharpshooter in
7.6 Match 4
Two stages of 12 shots each fired double action, standing without support at 25 yards. Time limit 35 seconds for each 12-shot stage including time to reload.
I would not shoot +P in this gun, it is a basic conversion with no front cylinder lockup that I can see.
The Mascot rib was sold by Travis Strahan, a Georgia gunsmith. He was best known for his coil spring conversion to S&W revolvers. I would expect his name to be on a gun that he had worked on, though.