But having located where your tracked item is, persuading the police to enter the property to retrieve it for you is another matter. Rather like the cyclists who had video evidence from their own cameras of being the victim of road rage or hit and run incidents, and who required court precedent to have it ruled admissible evidence, the police are very good at finding excuses as to why the evidence you supply is inadmissible, so that they don't have to do anything about it.