It's in the Miranda Warning.
They cannot be compelled to talk to the police if they request a lawyer.
Shut this down ASAP until they have a lawyer.
"I refuse to make any further statements without my lawyer present" is all they have to say. Repeat it over and over and over until the police relent.
The police will try to intimidate them but they must remain firm and assert their rights.
Thank you. Communicating now
“They cannot be compelled to talk to the police if they request a lawyer.
Shut this down ASAP until they have a lawyer.”
Too bad Sidney Flynn is busy at the moment, btw. ;-)