A routine traffic stop may become more serious within minutes. An officer might pull you over for speeding, then ask about alcohol use or request field sobriety tests. If the reason for the stop seems minor, you could wonder why the officer is still keeping you there.
Police need a legal reason to extend the stop for a driving while intoxicated (DWI) investigation. Signs of possible intoxication may give the officer reasonable suspicion to continue. What the officer notices and when those signs appear both matter.
What supports further investigation?
An officer does not need proof of DWI before checking for possible intoxication. The officer only needs specific facts that reasonably support that suspicion.
For example, an officer may smell alcohol while speaking with you. Slurred speech or trouble with balance could add to that suspicion. Your statement that you drank might also matter, although drinking alone does not prove intoxication.
Courts look at these details together rather than rely on one sign. Several small observations may support a longer investigation when they all point to possible intoxication.
Why does timing matter?
A valid traffic stop does not give police unlimited time to look into other offenses. Officers must stay focused on the reason for the stop and avoid unnecessary delay.
Police may ask about other issues while handling the traffic matter, as long as those questions do not make the stop last longer. If the officer notices signs of possible DWI during that time, those facts could support a longer detention.
Once the traffic-related work is done, or reasonably should be done, police generally need separate reasonable suspicion to keep you there for a DWI investigation. This makes the point when the officer first noticed signs of intoxication especially important.
Understand the next steps
How long the stop lasted and what happened during it may affect your DWI case. Reviewing the record could help you understand which parts of the stop may become important in court.
Consider keeping your reports, video and court papers in one place. Having those records organized might help you follow the case and prepare for the legal process ahead.
