RedactedNarrative: Deputies were dispatched to a report of a man with uncontrolled bleeding from an arm injury that occurred on a boat. When deputies arrived they found a man lying on the dock. A woman had a towel wrapped around his left arm above the elbow. The man had a compound fracture to his humerus. There was a large laceration with this injury. The woman with the towel had a belt tied around the man's arm below his armpit. The deputy applied his tourniquet above the belt and got the bleeding under control. When the paramedics arrived, the deputy was able to leave the victim and take a report of what happened. -- The watercraft was approaching the dock. A passenger was seated near the bow on the port side. He had a rope and was attempting to reach for the dock as the boat was approaching. Another passenger said she believed he fell forward because he missed the cleat on the dock. It appeared as if his arm got pinned between the boat and the dock when this happened. The boat may have been coming into the dock too fast.