It's really not a "Practical" police course.
AFAIK, PPC = Police
You can still have a PPC revolver built by a good gunsmith, but check out gunbroker for used examples. Generally listed at reasonable prices, too, since there's not much demand for them. Well-built ones can be real tack drivers. Be aware, though, that those über-stout barrels make the gun very
muzzle heavy, and they're generally designed to shoot target wadcutters.