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Motion to suppress

A motion to suppress is a request asking a criminal court to exclude particular evidence from a DUI trial on the ground that it was obtained or produced unlawfully. It belongs to the criminal case, not the driver's license case. North Carolina's statute, for example, provides that a defendant may move to suppress evidence only before trial, unless facts not previously known are discovered during the trial.

After a DUI arrest, the prosecution's case rests on evidence: what an officer observed, statements, and chemical test results. A motion to suppress is the formal way a defendant asks the criminal court to rule that some of that evidence cannot be used at trial. The rules for making, hearing and appealing these motions come from state law.

How does the license case relate to a motion to suppress?

The license case runs on its own track, with its own forum and its own questions. In Michigan, MCL 257.625f provides that a chemical-test refusal hearing is held by a hearing officer under the secretary of state and covers only listed issues: whether the officer had reasonable grounds, whether the person was arrested, whether a refusal was reasonable, and whether the person was advised of statutory rights.

In Virginia, Va. Code § 46.2-391.2 provides that a person whose license is suspended under that section may ask the general district court, or the juvenile court where appropriate, to review the suspension. The statute provides that the court's findings are without prejudice and are not evidence in any civil or criminal proceeding. A ruling in the license case therefore does not decide what evidence the criminal court admits.

How does North Carolina handle a motion to suppress?

N.C. Gen. Stat. § 20-38.6 provides that a defendant may move to suppress evidence only before trial, unless facts not previously known are discovered during trial. The State is to be granted reasonable time to procure witnesses or evidence and to research its response. The judge shall summarily grant the motion if the State stipulates the evidence will not be offered, and may summarily deny it if the defendant did not move pretrial when all material facts were known.

Otherwise, the judge decides after a hearing with sworn testimony, sets out written findings and conclusions, and preliminarily indicates a ruling. Under N.C. Gen. Stat. § 20-38.7, the State may appeal a preliminary grant to superior court, while the defendant may not appeal a denial of a pretrial motion but may appeal upon conviction as provided by law.

How does New York address compelled chemical tests?

N.Y. Veh. & Traf. Law § 1195 provides that a defendant who was compelled to submit to a chemical test under a compelled-testing provision cross-referenced in that section may move to suppress that evidence under New York's criminal procedure law. The stated grounds are that the order was obtained and the test administered in violation of that provision or any other applicable law.

The same section otherwise directs courts to admit chemical test evidence obtained under the testing provisions it names. Whether any particular result falls within the suppression provision is a question a New York lawyer can address.

The figures for your state

Deadlines, limits and penalty ranges are set by each state’s statutes, so this page does not state them. Each state page shows them with the official source and the date they were verified — or says plainly that a figure has not been confirmed yet.

Common questions

Is a motion to suppress part of the license hearing?

A motion to suppress is a criminal-court request. Michigan's MCL 257.625f, for example, limits a refusal hearing to the issues it lists. A lawyer in the reader's state can explain how evidence questions are treated in each proceeding.

What happens in North Carolina if the State agrees not to use the evidence?

N.C. Gen. Stat. § 20-38.6 provides that the judge shall summarily grant the motion to suppress if the State stipulates that the evidence will not be offered in any criminal action or proceeding against the defendant.

In Arizona, does a missing independent test affect the officer's test?

A.R.S. § 28-1388 provides that a person's failure or inability to obtain an additional test does not preclude the admission of evidence relating to tests taken at an officer's direction.

Sources

These sources are cited for the jurisdiction and scope identified on this page. They do not establish the law of another state.

Related

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