Answer:
I am not a legal expert, but I can provide some general information. The legality of police entering private property and detaining someone without a warrant depends on the specific circumstances and applicable laws in the jurisdiction. Generally, law enforcement officers need a warrant to enter and search private property, unless certain exceptions apply.
One potential exception is if the police have probable cause to believe that a crime is being committed or that there is an imminent threat to public safety. In such cases, they may be able to enter private property without a warrant to conduct a search or make an arrest. However, the specific requirements for probable cause and the extent of the officers' authority can vary by jurisdiction.
Additionally, if the informant's information is the sole basis for the police's actions, it may be subject to scrutiny by the courts. The reliability and credibility of the informant, as well as the corroboration of the information provided, can impact the legality and admissibility of evidence obtained.
It's important to consult with a legal professional or refer to the laws and regulations of the specific jurisdiction in question to understand the precise legal boundaries and requirements in such situations.