Lack of Reasonable Suspicion
Law enforcement officials must obtain reasonable suspicion – or reasonable
grounds that you are violating the law – before pulling someone
over while driving. They must state the reason why you were stopped, such
as you were speeding, failed to make a complete stop at a stop sign, making
unsafe lane changes without signaling, or engaging in unsafe driving behavior.
We know that many officers still struggle with deep-rooted biases. They
may, intentionally or not, target members of a certain race or gender.
Such discrimination causes them to assume guilt or judge a person more
harshly, leading to unjustified stops.
Moreover, police may believe a stop was completely justified, only to discover
they were operating with incomplete facts. Maybe they truly believe you
rolled through a stop sign or were speeding. However, they could have
been positioned at just the wrong viewing angle, and they didn’t
see the entire event correctly.
Field Sobriety Testing Errors
The police commonly use three NHTSA-standardized field sobriety tests (FSTs)
to properly evaluate intoxication.
An officer could fail to properly administer a test or may not be properly
trained or certified to conduct such tests.
Sometimes, officers fail to take outside conditions into account when conducting
field sobriety tests. For instance, a woman wearing high heels in the
rain could easily slip while walking a straight line. An overeager officer
could pounce on this simple slip-up, using it to justify an arrest.
Moreover, police must often rely on their intuition when making DUI arrests.
Someone suffering from certain medical conditions can exhibit strange
behavior, and an officer can easily confuse these actions with drunkenness.
Even a person with an odd, unique personality could be falsely accused
of intoxication.
Breath Testing Errors
Officers must also be trained and certified to administer a breathalyzer
test. They need to ensure the device is calibrated, perform a 15- to 20-minute
observation period before conducting a test, and follow other important
steps. A careless or hurried officer can easily miss or mistime such steps,
leading to inaccurate results.
DUI Checkpoint Mistakes
The police must follow certain rules when setting up sobriety checkpoints
or roadblocks. For example, checkpoints need to be visible at least 100
yards in either direction and signs with flashing lights must be at least
50 yards away or 700 feet away in rural areas. Officers must also have
an unbiased procedure when stopping vehicles (e.g., every third or fifth car).
Overeager officers often overreach their authority. They assume that drivers
won’t pay much attention and that they can get away with fudging
the rules.