Victor Owned a Restaurant That the Police Thought Was Involved

Victor owned a restaurant that the police thought was involved in money laundering. Officer Thompson went to the restaurant one evening when he knew Victor was not there. He ordered dinner. When Sam, a waiter, came with his food, Officer Thompson asked for permission to inspect the kitchen. Sam, who is not fluent in English, did not understand what Officer Thompson said, but nodded yes when he saw the tip that Officer Thompson had placed on the table. While still in the dining room, Officer Thompson looked through a window in the kitchen door and saw white powder and scales on a counter. Did Officer Thompson need an administrative warrant to go into the kitchen?

A) Yes, an administrative warrant is required to do an inspection of a restaurant.
B) Yes, an administrative warrant is required because there was no probable cause for a search.
C) No, police officers cannot use administrative warrants when investigating crimes.
D) No, administrative warrants are only used when doing inspections for violations of federal statutes.