The Nevada Highway Patrol issued Model 28s in both 4 and 6 inch. They replaced them it the late 80's or early 90's right after the California Highway Patrol went to the 4006 in .40 S&W.

I remember reading an artical where the head firearms instructor for the NHP said they carried the Model 28 so they could shoot through an engine block to stop a fleeing vehicle. I don't think he was the head firearms guy much longer.

I also saw the television show on the S.L.A./L.A.P.D, shootout. Typical television, some of the S.L.A. members were armed with M1 carbines modified to shoot full auto, and some Remington 870 shotguns, and handguns.

L.A.P.D. SWAT was issued K-38 or M-15 at the time, Ithaca Model 37 shotguns, Colt Ar-15s, and Armalite AR-180s. It was several years later before L.A.P.D. SWAT started issueing 1911 .45s to it's teams.