RedactedNarrative: On Sunday 8/20/17, Corporal and myself were on small boat patrol in the area of Cambridge Yacht Basin when we heard a non-emergency distress call over the VHF for a boat that has sunk. The caller was requesting TowBoat US for assistance. We met up with TowBoat entering the harbor and waiting for the drawbridge to open. 
  
        Once on scene at Blue Water Marine slip #13, we saw a 34 foot Baja boat that was still tied up to the dock but mostly underwater and leaning to the port side. Both  300 horsepower Yamaha outboards were submerged. The majority of the deck and the center console area were also submerged. See attached pictures. 
  
        The caller was also on scene and soon identified. Subject owns the marina and the boat slips attached. He advised me that he was attempting to make contact with the owner by cell phone. Soon the owner of the vessel was on scene. Subject1 was distraught and bewildered that his boat was under water. He talked with TowBoat for a while about plans on recovering the vessel and received an estimate on the recovery cost as $7,000. There were not any noticeable fuel leaks or fluid entering the water. An oil boom was placed around the vessel just in case. 
  
        Subject1 told me that he did not have insurance yet and has received several quotes from various agencies but has not finalized anything yet. The boat did not have any Maryland registration stickers on it. I was told that Subject1 has only owned the boat about two weeks and just took off the old stickers and has the replacement stickers in his vehicle (which I later identified to be MD 9839DA). I ran the vessel which was valid and registered to Subject1. Subject1 said he took the boat out Saturday to watch the boat races and was back to the slip by 1700 hours. He also said he came to the boat this afternoon around 1230 hours to put some fuel in the boat. He put about 7 gallons of gas from two gas cans in the boat and left. The next time someone noticed the boat was when it was under water around 1700 hours. Subject was the one to notice the boat and make the calls for service. After getting as much information that we could for the time being, Corporal and myself cleared the scene. 
  
        On 8/23/17, I made contact with subject2 by cell phone. She advised me that the boat was pulled out of the water on Monday morning around 0100 hours. Upon inspection of the vessel, there is nothing obvious that would relate to the sinking of the vessel. She also told me that they originally bought the vessel from Michigan and put new motors on it. These 300 horsepower Yamaha motors were installed by Blue Water Marine two weeks ago. They apparently ran the boat for the last two weeks without any problems and when asked if they ever had water in the hull she said it was always “bone dry.” I advised her to call me if they receive any more information on the damage or the cause. 
  
        All events occurred in Dorchester County, Maryland.