About 30 years ago I received a call from a detective asking if I would come down to the PD because he wanted to interview me about some crime that occurred in the neighborhood. I do remember him being surprised when I told him no, if he wanted to talk to me, he knew where I lived. Never heard from him again so I have no idea what it was all about.
Something very close to that happened to me, but instead of even talking to him I gave him my lawyer’s phone #. My lawyer told him, “If you want to speak to my client indict him and get him in front of a Grand Jury.” Never heard from them again.
On the other hand, if the police come to where you live and you let them in they can “search” (not necessarily formally or officially) and find something illegal you didn't know about.
On the other other hand, if we can help apprehend a criminal, most of us want to help, as long as we ourselves are not the “criminal” they want to apprehend.
Ain't nothin’ easy, and it seems like all the breaks go to the actual criminals and the legal bureaucracy.