Comment by Magic Marmalade:
Absolutely brilliant!
Those of us in the UK who were only familiar with Michael Winner being on the telly often, and principally known only (it seemed) for those God-awful Death Wish films, would never suspect he was capable of making anything like this!
This, on first impressions, seems like it's going to be pretty standard western fare... a vehicle for established Hollywood star to be the hero... roll into town, clean up the bad guys, before riding off into the sunset after a job well done...
...Except here, they've turned the whole thing on it's head, the titular "Lawman" is more the bad guy than the supposed baddies. Subsequent research reveals that the inspiration for the script for this was a quy read a quote to the effect that: "The only real hired killers in the west were the Lawmen" (paraphrased / misremembered), and that they often caused more trouble than they solved, if not actually were the source of the trouble in the first place.
It jumps straight in with the incident that causes all the hoo-ha from then on, as a bunch of cowboys get drunk in a town, shooting all over, as is the common trope and an old man gets accidentally killed during this incident.
But then we get to the ranch owner played thoughtfully, meditatively, even philosophically by Lee J. Cobb, who contrary to the usual pure evil overlord type you see in this role, is perfectly willing to make reparations to the townsfolk, for what his ranch-hands have done, as are the, again, counter-to-trope cowboys in his employ - all fully fleshed out characters, and proper humans, as opposed to the ye-ha! types we usually see here, and it even seems the townsfolk are willing to go along with it to.
All very reasonable, so far.
...Except, then Burt Lancaster, who gives an excellent performance as a coldly indifferent "lawman" shows up to see the law has it's pound of flesh. - He is all, and exclusively duty, and by the book, and is deaf to all other considerations, even if it would defuse this whole situation from the outset, and he is constantly advised to do so by all and sundry, but nothing is going to dissuade him.
The whole thing spirals out of control, with the Townsfolk deciding to do something about him administering the law, even at the expense of justice, and even the local Marshal (Played brilliantly by Robert Ryan) tries to talk him out of making a mess by pursuing this course, but Burt ain't having none of it... he's almost like the Anti-Terminator, fighting for what he sees as the good, ruthlessly relentlessly, and without a grain of compromise.
In the end, it's a tragedy, of how being too "by the book", and un-merciful can see justice, in the true sense, fall by the wayside.
A real Winner.