Criminal-procedure motion to exclude evidence obtained in violation of the Fourth, Fifth, or Sixth Amendment. Often case-dispositive in practice.
A criminal-procedure motion asking the court to exclude evidence obtained in violation of the defendant's constitutional rights — most commonly Fourth Amendment (illegal search), Fifth Amendment (un-Mirandized statements), or Sixth Amendment (right to counsel). The remedy is exclusion, not dismissal.
Filed before trial in criminal cases. The defendant typically learns of suppressible evidence through discovery and challenges it well in advance — successful suppression often guts the prosecution's case and triggers a plea.
The prosecution opposes by arguing the search was lawful (warrant, consent, exigent circumstances, or an exception), that Miranda was honored, or that any violation was harmless or fits the good-faith exception.
Granted (evidence excluded; the case may collapse), denied (evidence admissible at trial), or granted-in-part. The defendant can typically reserve the right to appeal a suppression denial after entering a conditional plea.