Do NOT let cops into the house. Speak to them through the door or intercom. Make sure to get their name, field office, and phone number. If they have a warrant, ask them to slide it under the door. Then back up from the door and read it out loud, noting what they are allowed to look for, and where. Do *not* speak to police without a lawyer. (You can't talk your way out of an arrest, but you can talk your way into a conviction!) Say: "I am going to remain silent, and I want to speak to a lawyer!"