Search Warrant
Definition
A judicial order authorising officers to enter and search a specified place and seize specified items. In most systems it must describe both the location and the items with particularity. A warrant without particularity is constitutionally defective in the US and procedurally invalid under PACE and the BNSS.
- Issued by
- A judicial authority
- Requires
- Particularity of place and items
- US basis
- Fourth Amendment
- UK basis
- PACE 1984
- India basis
- BNSS
Common questions
What happens to evidence seized under a warrant that lacked sufficient particularity?+
In jurisdictions like the US, evidence obtained under an overly broad or vague warrant can be excluded at trial under the exclusionary rule, since the lack of particularity makes the search itself unlawful regardless of what was found.
Why does particularity apply separately to the place and to the items sought?+
A warrant must describe both where officers may search and what they may seize, because authority to enter a location does not automatically authorise seizing anything found there, only the specifically described items or evidence that falls under a recognised exception.
Are there recognised exceptions that allow a search without a warrant?+
Yes, most legal systems recognise exceptions such as consent, exigent circumstances, or evidence in plain view, though these are narrowly construed and the burden typically falls on the state to justify why a warrant was not obtained.
Related terms
- Chain of Custody
- The documented chronological record of who collected, handled, transferred, and examined a piece of evidence. For digital evidence, chain of custody includes...
- Exclusionary Rule
- A rule that evidence obtained in violation of constitutional or statutory search-and-seizure requirements cannot be used at trial. Applied strictly and automatically...
- Exculpatory Evidence
- Evidence that tends to clear a suspect of guilt. Investigators have a professional and, in many jurisdictions, a legal duty to document...
- Fruit of the Poisonous Tree
- A US doctrine extending the exclusionary rule: not only is unlawfully obtained evidence itself excluded, but any further evidence discovered as a...
- Lawful Interception
- Court-authorised real-time capture of the content of communications in transit, such as telephone calls, emails, or instant messages. Requires a higher legal...
- Mutual Legal Assistance Treaty (MLAT)
- A bilateral or multilateral treaty under which signatory states agree to assist each other in gathering evidence for criminal investigations. MLATs define...
- Plain-View Doctrine
- A rule permitting an officer who is lawfully present in a location to seize evidence whose incriminating character is immediately apparent, without...
- Probable Cause / Reasonable Grounds
- The standard of suspicion required before a warrant may issue or a warrantless search may occur. In US law, probable cause requires...
- Proportionality
- The legal principle, central to European human rights law and to many constitutional systems, that any interference with a fundamental right must...
Explained in these topics
- Legal and Ethical Foundations of Cyber InvestigationsA court order authorising law enforcement to search specified premises, devices, or data for evidence. Required in most common-law jurisdictions before accessi...
- Search, Seizure and the Forensic Exhibit