According to that guy, the most important is not to talk actively to police. If you said I didin't do it before the police asked you, then a question in police's mind is why you said that, no one said so.
If you were invloved in a case, you might think you were just a witness, but for police, anyone involved might be a suspect.
first , "don't lie"
"I am not sure" or "I can not remember" might be a good choice. It is said Dick Chenny said over 70s "I can't remember" in an interview.
If you feel the police are kind of push or agressive, tell him you need a lawyer.
The best, as OLD CAT said, is not in that situation.
Personal opinions, Please don't take it as leagal advice.
