RedactedNarrative:     On July 7th, 2015, at around 9:10pm, I received a call for service in reference to a vessel returning to Good Hands Creek landing with a subject onboard with an unknown head injury caused while wakeboarding.  I responded to the landing with Ofc. and was able to speak with the operator of the vessel as well as several other subjects who were on board.  By the time I reached the landing, the injured subject had already been transported via ambulance to UM Shore Medical Pavilion located in Queenstown. 
      I arrived at the landing with Ofc. at around 9:45pm.  I met with a subject, who advised that it was his fathers' vessel and that he had been operating the vessel when the injury occurred.  Operator stated that he and his friends had met in the parking lot at Safeway on Kent Island at around 5:30pm or so and had then traveled as a group to Good Hands Creek landing where they launched the vessel (2002 18' SeaRay - MD 4443 DL).  Operator advised that they had been taking turns wakeboarding all evening.  At around 9:10 or so he stated that a subject was wakeboarding and apparently caught an edge and fell forward, landing face first into the water.  Operator stated that he knew that Victim was not experienced with wakeboarding, and had been running the vessel in a straight line at around 12 or 14 knots.  Operator advised that he did not witness the accident as he was operating the boat and looking forward.  After Victim fell, Operator said that he observed her hold her head in her hands and begin to cry, while also complaining of head and neck pain.  Operator stated that he and another jumped into the water and got Victim back onto the vessel at which time she collapsed and laid down on the stern of the boat.  At this time, Operator stated that he got everyone back in the boat and began to head back into the landing at around 6 or 8 knots.  Once back at the landing, Queen Anne's EMS transported Victim to the emergency room via ambulance.  
      While inspecting the vessel, I observed a white cooler sitting behind the operators seat of the vessel.  I asked Operator if there was any alcohol on board and if he had had anything to drink.  Operator advised that he was going to be honest, and that there were some beers and empty cans inside the cooler that were leftover from the last time the vessel was used over the fourth of July weekend.  I opened the cooler and observed a number of crunched up empty beer cans.  At the bottom of the cooler, still in the cardboard packaging, I observed one unopened Bud Light brand beer can.  I did not observe any unmelted ice in the cooler.  I also did not observe any opened beer containers outside of the cooler.  While speaking with Operator I did not notice any distinct odor of alcoholic beverage.  I performed the horizontal gaze nystagmus test on Operator and did not observe any clues.  The other subjects on board the vessel stated that the cooler was typically left onboard and was observed on prior boating trips.    
      I spoke with the other subjects on board who all had a similar version of the accident.  Two people were not on board the vessel when the injury occurred.  One was swimming around wearing a PFD, and the other was floating near him in the water on a paddleboard.  A third advised that she was sitting at the front center of the vessel and saw Victim fall.  Humphreys stated that Victim had fallen forward into the water and possibly had caught the front edge of the wakeboard.  Subject also stated that Victim had possibly caught an edge and fallen head first forward into the water.  All subjects stated that Victim immediately held her head and began to complain of head and neck pain.  Subject2 further stated that Victim was inexperienced at wakeboarding.  She also advised that at the time of the accident, the vessel was traveling in a straight line and was at around 2200rpm.  She did not think that they were traveling any more than 20 knots. 
      After speaking with these subjects,