RedactedNarrative: On 06/07/15 I CPO was on duty and located in Murphysboro, IL.  At approximately 8:15PM I was contacted via cell phone.  Subject stated that she was presently aboard a motorboat on Lake of Egypt and that there was an emergency with injuries.  She stated that a female had been lacerated by the propeller of the boat while it was spinning, and that she was bleeding badly.  Subject asked what to do.  I advised her to have someone call 911 and try to determine where the nearest access point by land was to their location.  The victim was moved aboard the boat while I spoke with Subject.  Subject stated that there were multiple deep cuts on the leg of Victim, and asked me what they should do.  I recommended that Victim be placed laying on her back with her lacerated leg elevated and towels be wrapped around the wounds, with constant pressure being applied.  I asked if EMT''s had been dispatched.  She stated yes, and that they were enroute to Macks Marina as we spoke to meet paramedics.  Subject advised that they could see the paramedics, but had to slow down due to a no wake zone.  I told her to tell the operator to disregard the no wake zone and get the patient to the paramedics as quickly as they could safely do so.
  
  Sgt., whom was with me when the call came in, and I began traveling to Macks Marina.  While enroute I spoke with Sgt. with the Williamson County Sheriffs Department.  I requested that Sgt. secure the scene and the watercraft involved.  Sgt advised that he had arrived and would keep the occupants and operator at the marina.  Sgt also stated that Victim was going to be transported to Deaconess hospital in Evansville, IN. via helicopter.
  
  Sgt. and I arrived at approximately 8:50PM.  Sgt. briefed us on which subjects were involved in the incident and where they were located.  he had also recorded their information and provided that to me.  Sgt. spoke with occupants of the boat, while I interviewed the operator.  Operator stated that he was towing two females on an inflatable tube.  Victim fell off the tube and he circled around to pick her up.  Victim was close to the boat on the port side as Operator attempted to pick her up.  Thinking that she was still next to the boat, Operator put the boat in reverse.  The engine quit running, and Victim began to scream because her leg was cut from coming in contact with the moving propeller.  He stated that he entered the water and assisted her away from the propeller and she was placed aboard the boat.  Rescue personnel were notified and Victim was transported to Mack''s Marina and care was taken over by EMT''s.
      
  I inquired if Operator had consumed any alcohol while on the lake prior to the incident.  Operator stated that he had a mixed drink shortly after arrival at the lake.  I asked if he had consumed alcohol since the incident.  He stated no.  I requested that he perform field sobriety tests.  Operator agreed to do so, stating that he was "fine".  I administered 4 field sobriety tests to Operator.  These included: horizontal gaze nystagmus, hand-pat, finger to nose, and alphabet test.  Operator passed all of these tests, and showed no impairment.  I requested that Operator submit a breath sample into the RBT IV instrument.  Operator submitted a breath sample which indicated a BAC of .000%.
  
  I read Operator the Miranda Warning.  He stated that he understood his rights, and agreed to further discuss the incident with me.  I requested that Operator complete a written statement outlining the incident (see attached).  Operator provided a statement which indicated that he knew that Victim was in the water, but thought she was along -side the boat, when he shifted the engine into reverse.