As stated in previous blogs, Pennsylvania and federal courts disfavor applications for search warrants based on information obtained from anonymous sources. The reason the Courts disfavor these search warrants is because there is no inherent reliability in information obtained from anonymous sources. If the police no the person providing the information or the person provides his name and contact information, there is some inherent reliability to that because that person potentially subjects himself to penalties for false report to law enforcement.
In cases where the police do not have prior dealings with the person providing the information and the person refuses to give his name and contact information, the Courts will generally suppress evidence seized. Generally, the two ways search warrants based on anonymous sources can be saved is: 1. the information the anonymous source provided contains very specific, detailed information not readily available to the public and predicts future criminal behavior or 2. prior to obtaining the search warrant, the police verify or corroborate information the anonymous source provided.