RedactedNarrative: On 07/26/2014, at approximately 2200 hrs, I was contacted by Sgt. to handle a boat accident that occurred on the Mississippi River near Clinton Iowa. Sgt. advised that he was told that it happened in Illinois'' waters, but Iowa DNR was on scene in the process of taking information. I was advised that there were no injuries. 
  
  I arrived on the scene at the Clinton Marina at approximately 2245 hrs. I met with Iowa DNR personnel who introduced me to the operator and her passengers of the vessel that was struck by a bass boat. The operator of vessel #2, OPERATOR2, advised that she and her passengers were cruising upstream in their pontoon boat on the Illinois side of the navigational channel. OPERATOR2 advised they were out in front of the Clinton Marina and the Candle Light Inn. OPERATOR2 advised she could see a bass boat to her starboard/right side, and that it was heading right towards them. OPERATOR2 advised that she and her passengers began waving their hands and yelling at the boat to stop. OPERATOR2 advised that she kept her course up stream and the bass boat struck her pontoon boat on the starboard side in the center of the front passenger deck. OPERATOR2 stated that the bass boat was "flying" and ended up resting on top of her pontoon boat. OPERATOR2'' passengers advised they all got out of the way of the bass boat before it struck them. OPERATOR2'' passenger’s statements were all consistent with what she advised. See supp. report and attached written statements taken by Iowa DNR. 
   
  OPERATOR2 advised that after the bass boat came to rest on top of her pontoon boat, the male operator kept saying he was sorry and asking if everyone was ok. OPERATOR2 advised that in the striking vessel, vessel #1, was the male operator, later identified as OPERATOR1, and 2 juvenile female passengers. OPERATOR2 advised they all appeared to be uninjured, as were her and her passengers. OPERATOR2 then advised that another boat came along and took them all back to the marina. She then went on to say that the Clinton Fire Boat towed her pontoon boat in while the bass boat rested on top of it. 
  
  At approximately 0030 hrs, 07/27/2014, Iowa Conservation Warden returned from the jail where he had taken the operator of vessel #1, OPERATOR1, for operating a watercraft while under the influence of alcohol / boating while intoxicated. WARDEN advised me that when he arrived on the scene of the accident, OPERATOR1 was showing indicators of impairment and was subsequently ran through field sobriety tests and arrested for BWI. WARDEN advised me that OPERATOR1 registered .113% BAC, nearly two hours after the accident occurred. See supp. report with attached Iowa DNR arrest report. OPERATOR1 was processed and would be spending the night in the Clinton County Jail. I would speak with him the following day when he was released. WARDEN did advise that OPERATOR1 was stating that the boat that he struck, did not have navigation lights on, and that is why the collision occurred. OPERATOR2, and all of her passengers advised that they did have their navigation lights on after the sun had set, and at the time of the collision. 
   
  I did get to speak with a juvenile passenger sitting in the lap of the operator of vessel #1. She advised that when they hit the pontoon boat, they could not see it because there were no lights on the other boat. This statement seemed to have been "coached" by her grandma, mother of the operator of vessel #1 who was telling her to go and talk to me. This was after I had already had a conversation with her in reference to the collision. The other passenger in OPERATOR1''S bass boat, was front port side seat passenger. She was already at home but did go to the Clinton Hospital to get checked over. She was transported by Clinton Fire Dept. after they were brought to shore and complained of a sore shoulder. She was released.