Six seated tests were evaluated in the laboratory to determine whether they would be
feasible for use on the water as sobriety tests to measure impairment from alcohol at blood
alcohol concentrations (BACs) of> 0.08%. The standardized field sobriety tests (SFSTs)
currently used at roadside are not suitable for the marine environment; marine law
enforcement officers are left with insufficient methods to assess impairment on the water.
One hundred fifty-seven participants were randomly assigned to a BAC group: 0.00 …

The objective of this project was to develop sobriety tests that can be administered in the
seated position to assist water patrol officers in detecting alcohol-related impairment in
boaters. Four seated sobriety tests were administered to 330 boaters to determine the tests'
usefulness in classifying boaters as having blood alcohol concentrations (BACs) below the
illegal limit (BAC<. 08%) or above the illegal limit (BAC≥. 08%). Data were obtained by a
team of four marine officers and two civilian observers on Lake of the Ozarks in central …