Can police search people and vehicles on my property based on third-party report of drug use?
<p>Someone called the police to report someone doing drugs in a vehicle on my property.</p>

<p>What right does the officer have to ask questions and search people and vehicles? </p>

<p>Various cases heard by the US Supreme Court have established that an anonymous tip can indeed create reasonable grounds for probable cause, allowing the police to search and detain persons involved.</p>

<p>For example, the case of <a href="https://en.wikipedia.org/wiki/Navarette_v._California" rel="nofollow noreferrer">Navarette v. California</a> where a suspect was stopped on the highway after an anonymous tip was given to police - the court ruled that the tip established reasonable grounds for probable cause which allowed the persons to be stopped in the first place.</p>

<p>The precedent set in that case would apply to the situation you are describing.</p>

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