RedactedNarrative: On 08/10/15, I (CPO) responded to an ambulance call at Big Slough boat launch at approximately 6:00 P.M.  There was a subject that was wrapped up in a towel, holding his right arm close to his chest with his fingers pointed up.  When I approached the scene, I heard him tell a first responder that he fell off of a boat and when he went into the water he reached up and his right hand went into the prop.  Victim''s wife was there on scene and explained she was a nurse and she had bandaged his hand.  I looked up from Victim and Victim’s wife and saw two boats that appeared to be waiting to exit the ramp.  One boat took off when they saw me look up.  
  
  Victim was taken to Mercy Hospital in Clinton Iowa.  I met with Victim’s wife at the hospital to get a statement and find out what happened (see Victim’s wife statement). Victim’s wife explained Victim was in their friend’s fishing boat when the accident happened.  Victim’s wife further explained her and Subject were on the beach waiting for Boat owner and Victim to get back with hamburger buns for dinner.  
  
  Victim’s wife said she saw the boat turning into shore, looking as though it was turning to take a better angle.  Victim’s wife looked up when she heard Victim screaming for her.  She said Victim was holding his injured right hand up in the air.  Boat owner was able to get him back into the fishing boat and then Victim’s wife bandaged Victim on their pontoon boat that was on the beach.  Boat owner took all of them back into shore and wife called 911.  I asked Victim’s wife if I could help with their boat and she explained Boat owner and Subject were going to take care of it.  
  
  She further explained her and Victim had a slip at Savanna Marina.  After I spoke with Victim’s wife, I went to locate Boat owner to further investigate and get the information for the report.  I went to Boat owner''s listed address and he and Subject weren''t home.  I then went to Big Slough Boat Launch and found Boat owner''s truck and trailer.  I went to Savanna Marina and located both Victim and Victim’s wife''s vehicles.  I called Boat owner and Subject''s phone to find out where they were and to see if I could help.  
  
  Subject answered the phone and explained Boat owner was driving.  When I asked where they were she explained she thought they were in Spring Lake.  I asked if they were going to Savanna Marina or Big Slough.  Subject advised she didn''t know the river well, so I would need to talk to Boat owner.  Subject''s speech was thick tongued and she had slurred speech.  Boat owner explained they were in Victim''s boat and they were towing his boat behind.  He explained they were on their way to Savanna Marina and were about to the Sabula train bridge.  Boat owner''s speech was also thick tongued and his speech was slurred.  I explained I had a report to do, so I would meet him at Savanna Marina.
  
  I observed Boat owner operating Victim''s boat, towing his boat into Savanna Marina at approximately 9:35P.M.  I conducted vessel inspections on both vessels.  Boat owner was arrested for OUI on Victim''s boat (see report 2015-1-469-023BU) at approximately 9:52P.M.  Boat owner was cited for reckless operation of his boat for the accident Victim was involved in.