NO MAN'S LAW is exciting enough to hold one's interest for its duration. The acting is very good and Oliver Hardy made a surprisingly effective villain. Rex, the Wonder Horse, was worked into the plot fairly seamlessly and realistically. He went on to act in about 6 movies during the sound era.
I like pictures that help me to suspend disbelief and I really had the sense that the characters were in a remote desert locale where the plight of the miner and his daughter was immediate and real. There was no hope of intervention by a sheriff and the cavalry was not coming to their rescue. They were on their own and death was hovering over their heads. This made the film a tense drama. Cinematography was far superior to most B Westerns and the suggestion of sensuality also make the film strikingly different.