Motion to Suppress Law and Legal Definition

A motion to suppress is a motion in criminal cases that requests a judge for an order that certain evidence be excluded from consideration by the judge or jury at trial. A hearing may be filed by the court to decide the motion. The motion, if granted, disallows the concerned evidence in the coming up trial. In a motion to suppress, the moving party may request only for the exclusion of evidence that the US Constitution, a state constitution or any specific statute permits to be excluded.

For example a motion to suppress may be made to exclude a confession that the defendant alleges that he signed without reading his Miranda rights.