Sorry that this post is so late, I've been out all day. Anyway, Law And Order were a HC band from the Baltimore-area. In fact, the vocalist of this band, Mike Finnegan, was the brother of Void drummer Sean Finnegan (R.I.P.).
This EP was released in 1981, on the band's own Fetal Records. It's a great Thrash record that demands repeated listens.
After Mike left the band, they broke up and hired Bill Stevenson (Not the same Bill of Descendents and Black Flag fame) and formed the rather bizarre, but still great, Bollocks (I have their first EP on my hard drive so, expect that soon).