Complex sentence: After learning that train and stagecoach robbers, such as the Sam Bass gang, were using the area as a hideout, he intensified law enforcement, but certain businessmen advertised against too many restriction in the area as having bad effects on the legitimate businesses.
Split into simpler sentences: After learning that train and stagecoach robbers, such as the Sam Bass gang, were using the Acre as a hideout, he intensified law enforcement. But certain businessmen advertised against too many restriction in the Acre as having bad effects on the legitimate businesses.