A suppression motion asks the court to exclude evidence from use in a criminal case because of an alleged legal violation.
It often challenges searches, seizures, interrogations, identifications, or other evidence-gathering steps.
Why a suppression motion matters
Evidence can shape the outcome of a criminal case. If key evidence is suppressed, the prosecution’s case may become weaker or require a different resolution.
Suppression motions also test whether law enforcement followed constitutional, statutory, or procedural requirements.
Where a suppression motion appears
Suppression motions usually appear before trial. They may involve police reports, body camera footage, warrants, testimony, exhibits, and legal briefing.
The court may hold an evidentiary hearing before deciding whether the challenged evidence can be used.
How it differs from nearby terms
A suppression motion is a request to exclude evidence before or during a criminal case. An objection is often made during a hearing or trial when evidence is offered.
Probable cause and reasonable suspicion are standards that may be relevant to the motion, but they are not the motion itself.
Practical example
After a traffic stop leads to a vehicle search, the defendant files a suppression motion arguing that officers lacked reasonable suspicion for the stop and probable cause for the search.
Related Terms
Quick check
Question: What is the goal of a suppression motion?
Answer: To keep challenged evidence from being used because of an alleged legal violation.