Winchester made a series of loads called the Lawman series. They were +P+ loads and the boxes were labeled "for law enforcement only". I have some in 9MM that I bought at a police supply facility. The headstamp says "WCC +P+ 90". I think the only reason they were marked "for law enforcement only" is because they are higher pressure loads and Winchester figured Police agencies would not be carrying poor quality or obsolete guns that could not handle the pressures. I think they still make these loads and as stated before, just because they are marked for LE only, I don't think they are hard to find on the open market.