RedactedNarrative: Prelude: i responded to a boat accident on geist reservoir that involved two (2) boats.  One person was seriously injured.   on may 17th, 2015, at approximately 1711 hours, i, indiana conservation officer, was notified by ico central dispatch of boat accident with person injury on geist reservoir.  I responded to the geist reservoir marina and launched the boat.     I arrived at the scene at 1740 hours.  When i got to the area of the accident the victim had been transported to land and was being treated by members of the fishers fire department and indianapolis fire department.   I met with fishers police lieutenant, who had arrived several minutes before i did.  He explained that he had located the boats involved in the accident and told them to drop anchors where he located them.  He further explained that when he arrived at the scene he had found the victim lying on her back on the floor of her boat.     The victim was verbally identified by her husband.  Lt advised that victim had a laceration on her left hand and her head.  He stated that he smelled the odor of alcoholic beverages on victim' breath and that she indicated that she had consumed some alcoholic beverages earlier in the day.  He said that he transported victim to land.  Lt later provided a supplemental report (attachment # 2).     I located victim' husband, identified with an indiana driver's license.  Victim’s husband was able to confirm the information on his wife.   Ico advised that he was arriving at the scene by land and i requested that he go to the hospital with victim.  I asked ico to gather information on victim' condition and injuries, obtain a blood draw from her and interview victim’s husband.  He later told me that she was transported to st. Vincent's hospital.  Ico also provided a supplement.   He later told me that operator2 tested 0.003% bac on his pbt.  I towed vessel # 2, a red and white 1999 sea doo runabout bearing indiana registration # in 5902 du (attachment # 6), to the ramp.   Vessel # 1 had damage to the starboard side.  The captain's chair and the steering wheel were missing and the steering console was severely damaged.  Vessel # 2 had damage to the bow and underside of it.     It appeared that vessel # 2 struck vessel # 1 from behind on the starboard side and passed across vessel # 1 to the forward port side.  A field interview conducted at the boat ramp at the marina with operator2 indicated that he had struck vessel # 1 with the bow of vessel # 2.  He was not sure if vessel # 2 passed over vessel # 1.  He stated that he was travelling south or toward the dam.  He also told me that vessel # 1 was facing in a similar direction.  He was unsure if vessel # 1 was underway or not.  He stated that if it was moving, it was moving at a slow speed.  He also told me that vessel # 1 was in front of him and to his left.  While speaking with operator2 i did not detect any indicators of intoxication.  He told me that he had consumed one (1) beer earlier in the day.     Ico contacted the marion county prosecutor's office and received a search warrant to draw blood from victim at the hospital.  He then faxed a copy of the warrant to ico at the hospital to be executed (attachment # 7).   He told me that operator2 tested 0.000% bac at 2148 hours (attachment # 8).     It appeared that vessel # 2 struck vessel # 1 from behind on the starboard side and passed across vessel # 1 to the forward port side.  A field interview conducted at the boat ramp at the marina with operator2 indicated that he had struck vessel # 1 with the bow of vessel # 2.  He was not sure if vessel # 2 passed over vessel # 1.  He stated that he was travelling south or toward the dam.  He also told me that vessel # 1 was facing in a similar direction.  He was unsure if vessel # 1 was underway or not.  He stated that if it was moving, it was moving at a slow speed.  He also told me that vessel # 1 was in front of him and to his left.  While speaking with operator2 i did not detect an