RedactedNarrative: Operator1 hit five docked boats.  On August 20, 2016 at approximately 10:46 PM, I was on a boat patrol of the Chicago River and Lake Michigan with CPO and CPOT. We had just finished performing a security detail during fireworks for the air and water show right outside of the lock to Chicago River on Lake Michigan. We entered the lock to the Chicago River and received a call from the US Coast Guard a boat was wrecking into other boats in DuSable Harbor, Chicago.
   
  Once we were able to clear the lock we docked the patrol boat at the Joint Marine Force Facility and walked to DuSable Harbor as it was a faster response than locking back through to Lake Michigan. I arrived at DuSable Harbor to find the US Coast Guard inspecting the watercraft and operator for safety equipment. 
   
  As the US Coast Guard was performing there inspection I observed the operator struggling to find the safety equipment requested, and occasionally having to use his hands, posting against structures in the boat, to keep his balance. During the inspection Operator1 was talking with the US Coast Guard during the inspection and I noticed slurred and thick tongued speech. 
   
  Once the US Coast Guard was finished with their inspection, I sat Operator1 down on a seat of the boat to be more comfortable. I asked Operator1 how many drinks he thought he might have had that evening stating, "Do you think you have had four to six, seven to nine, or ten or more drinks this evening." Operator1 answered with, "I''ve probably had four to six. Well probably six." I explained to Operator1 I was going to have him perform some Standardized Field Sobriety Testing. He said that was fine. I asked Operator1 to put his arms at his side and sit up straight. Operator1 did so. I asked Operator1 if he was comfortable in this position and he responded, "yes." I started Standardized Field Sobriety Testing at approximately 10:54 PM.
  The results of the tests are as follows:
   
  Horizontal Gaze Nystagmus Test -
  I had Operator1 sit comfortably with his hands at his sides. During the Horizontal Gaze Nystagmus Test I noticed six indicators of impairment. The indicators were one indicator in both the left and right eye for lack of smooth pursuit, one indicator in both the left and right eye for distinct and sustained nystagmus at maximum deviation, and one indicator in both the left and right eye for onset of nystagmus prior to 45 degrees.
   
  Operator1 exhibited six indicators of impairment. Six is the maximum number of indicators of impairment for this test. 
   
  Palm Pat Test -
  The next test that I had Operator1 perform was the Palm Pat Test. I again had Operator1 sit comfortably with his hands at his sides as I explained and demonstrated the test. Once I was done, I asked him if he understood the test. Operator1 said that he did. I told him to begin. Operator1 displayed four indicators of impairment during this test by not following directions, using an improper pat that was not explained or demonstrated, did not increasing his speed during the test, and stopped test before being told to do so. When I told Operator1 to remember to speed up as he does the test, he tried to, and started chopping his hands and not counting correctly.
   
  Operator1 exhibited four indicators of impairment for the Palm Pat Test
   
  Alphabet Test -
  I asked Operator1 if he knew the English Alphabet. He said he did. I asked him if he could recite the alphabet without stopping or singing. He said he could. I told him to go ahead and do so. 
   
  Operator1 was able to perform the test, but with very slurred and thick tongued speech.
   
  I ended the Field Sobriety Tests at at 11:10 PM 
   
  At 11:11 PM I informed Operator1, based on my observations of his performance of the standardized field sobriety tests he was under arrest for Operating a Watercraft Under the Influence of Alcohol.
   
  Operator1 immediately said, "Oh my God. Am I going to jail…” 
  
  Operator was issued a citation for operating while under the influence of alcohol.
  
  Witnesses described the operator as having struck 5 boats in the harbor before finally docking the boat in the slip.