Client stopped by Marine Patrol for failure to turn on stearn/bow lights while exiting channel at night. Officer conducts routine safety check and detects “faint” odor of alcohol and “slightly” slurred speech. Client boater asked to board patrol vessel for battery of field sobriety tests. Circumstantial evidence supported finding that nervousness contributed to difficulty with two field sobriety tests while client performed perfectly on third test. Evidence of refusal of breath test excluded by defense. Not guilty finding after trial.