##  [Reasonable Suspicion](/reasonable-suspicion) 

  ##  [Reasonable Suspicion](https://criminal.quantumdictionary.io/reasonable-suspicion-0) 

  

 [![Criminal Law Dictionary](/sites/default/files/styles/large/public/2026-01/Criminal%20Law.png.webp?itok=VjlKiX0o)](/topic-specific-dictionaries/law-governance/criminal-law)

- Law & Governance -

**Criminal Law Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A factual threshold requiring specific and articulable facts suggesting criminal activity may be occurring. It supports limited investigative intrusions under defined legal constraints. It does not justify broad searches or arrests absent additional legally sufficient facts. It balances investigative necessity with protections against arbitrary interference.



 

 

 

 

 





 

 



 ##  [Reasonable Suspicion](https://defense.quantumdictionary.io/reasonable-suspicion-1) 

  

 [![Defense, Security & Public Safety Dictionary](/sites/default/files/styles/large/public/2026-01/Defense%2C%20Security%20%26%20Public%20Safety.png.webp?itok=3-v4M7xK)](/topic-specific-dictionaries/defense-security-public-safety)



**Defense, Security & Public Safety Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A lower evidentiary threshold than probable cause consisting of specific, articulable facts and rational inferences from those facts that would lead a reasonable officer to suspect that criminal activity is afoot; sufficient to justify a brief, investigative detention or limited inquiry but not to support most full searches or custodial arrests absent additional justification.