On October 6th, 2013, Lt. received information of a boat collision on the Ouachita River, approximately 1 mile south of the Moon Lake Marina in Ouachita Parish.  At approximately 5:15 p.m., Sgt were dispatched to the Moon Lake boat ramp.  Upon our arrival, OPSO deputies and EMS personnel were already on the scene.  I was advised that there had been a collision between PWC and a bass boat and that all occupants were located at the boat ramp.  Upon advise received from EMT personnel on the scene, the operator of vessel 1 (LA 7483 EF) , was transported to St. Francis Medical Center and his passenger, was sent to Glenwood Medical Center for treatment of possible injuries.  The passenger on vessel 2 (LA 3234 GB), was also injured and received treatment at St. Francis North Medical Center.  Sr. Agent had made contact with the driver of vessel 2, who appeared to be under the influence of alcohol and/or drugs.  Sr. Agent took operator2 aside and performed Standard Field Sobriety Test (SFST) on him and determined that operator2 was intoxicated based on his poor performance on the tests administered.  
		   Later that evening, I went to St. Francis Medical Center to interview Operator1.  During this time, I asked him to explain what happened and he stated that he had observed vessel 2 behind him jumping over the wake created by his boat.  He stated that vessel 2 was travelling very fast and passed him on the right side of his boat then suddenly turned around and was headed back directly toward him.  He said that he tried to make a sharp right-hand turn to avoid being hit but vessel 2 struck his boat on the left-hand side.
		   It has also been determine that operato2 violated the following rules of the road for vessels:  Rule 8.  Vessels will not abruptly change course without first determining that it can be safely done without risk of collision with another vessel.  Rule 20.  Operator shall maintain a proper lookout.
Monroe