RedactedNarrative: On Thursday. June 11, 2020, at approximately 1700 hours, I, Officer, was called to a boat accident near the Pine Boat Ramp area by marina staff. Arriving on scene at approximately 1715 hours, I was flagged down by subject1. From Subject1's statement, he observed the pontoon rental (NM5626EE) on the dock. He continued slowly towards his boat trailer that was in the water. Subject1 then noticed the pontoon boat swing bow-out and head towards him. 
  
  Subject1 yelled, but the pontoon, as Subject1 stated, "full-throttled it'', and hit the port side forward of midship of his boat (NM4319EC). I talked with the two passengers on the rental boat.
  
   From subject2’s statement, they were pulling out of the dock when he observed the other boat and heard the guy yell when the pontoon boat he was on collide with Subject1's boat. Subject3 was on the pontoon boat but was looking away and did not see anything. 
  
  Subject4 saw the boat and heard Subject1 yell, but Subject4 continued forward and collided into Subject1's boat, hitting the port side forward of midship of Subject1's boat with the port bow pontoon of the rental. Subject1 and Subject4 started talking together when I heard Subject1 ask Subject4 if he had been drinking. Subject4 stated yes a few, but he had stopped about three hours ago. I could not smell any alcoholic beverage on him, nor did I notice any clues of impaired walking earlier when I followed him to the car. I looked at his eyes, and they were bloodshot. I moved Subject4 over to my unit and checked for HGN. 
  
  At the truck, l had Subject4 sit on the tailgate. I still could not smell anything but observed a clue of lack of smooth pursuit in the left eye. I asked again how many beers he had. Subject4 stated around five and they had started about 0945. I wanted to double-check and get a better view. I had him move to the shade and sit on the running board of the truck. I still could not smell anything. I proceeded to do the test again. Subject4 only showed lack of smooth pursuit in the left eye. Not having the clues and the odor of alcoholic beverage, I did not continue with the test. 
  
  I did tell him he was close, and it would be noted in the report. Before releasing him, I checked the driver he was with. The driver had clear eyes, no odor of alcoholic beverage, and clear speech. During this, I received a call from dispatch of a distressed boat. I proceeded to the marina and told a marina employee I would be back to check on the rental boat and get the information. After returning from the boat tow, I inspected the rental pontoon boat with owner of Navajo Lake Marina, and found the port bow eye was loose and showed a rub mark. This matched the indention in Subject1's boat. I also found, on the port bow of the pontoon, black transfer that matched the cut on the rub rail on Subject1's boat. From statements and evidence, Subject4 did not make sure the area was clear before repositioning the boat from the dock and did not respond correctly in putting the boat into neutral or reverse to avoid the collision.
  