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After advising the subject that
this is a voluntary test, and that it is not an
alternative to an evidential breath alcohol test as
described in chapter 448-13 WAC, the operator shall
determine by observation or inquiry, that the
subject has not consumed any alcohol in the fifteen
minutes prior to administering the test. If the
subject has consumed alcohol during that period, the
officer should not administer the screening test for
probable cause purposes until fifteen minutes have
passed. If the subject responds that they have not
consumed any alcohol in the last fifteen minutes,
the officer may offer the subject the opportunity to
provide a breath sample into the PBT. If the subject
consents, the operator will check the temperature of
the device to ensure that it is within the normal
operating range. The operator will then press the
"read" button to obtain a sample of ambient air, and
ensure that this results in a reading of 0.003 or
less. The subject will be asked to exhale into the
device. The device will be activated towards the end
of the subject's exhalation, to capture a portion of
end expiratory breath for analysis. |
