Someone called the police to report someone doing drugs in a vehicle on my property.
What right does the officer have to ask questions and search people and vehicles?
Someone called the police to report someone doing drugs in a vehicle on my property.
What right does the officer have to ask questions and search people and vehicles?
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.
For example, the case of Navarette v. California 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.
The precedent set in that case would apply to the situation you are describing.
He can't search your vehicle without some sort of probable cause, but he can come and investigate.
Probable cause could include a ton of things in certain situations and something that is probable cause in one instance could not be in another, but generally, when the office arrives, he has to observe something that would indicate a need to search for his safety or that would show a need to search because a crime was committed, in order to search.