行动规范 help them to do so BETTER not WORSE,

it is easy for 警察 to confirm
what prof. said--'this is my house'--
other than through ID,

go back to his car,
check who lives in this house,
the resident's profession
ets.,

Dr. Gates is not a NO-BODY,
millions of items pops out
when search his name.

My point is simple:
to avoid this event is possible and easy.
it would be a win-win situation to the policeman and
the professor