What is the current state of the law on the Miranda privilege?

" 'In order to invoke the Fifth Amendment privilege after it has been waived,⁵ and in order to halt police questioning after it has begun, the suspect "must unambiguously " assert his [or her] right to silence or counsel. [Citation.] It is not enough for a reasonable police officer to understand that the suspect might be invoking his [or her] rights. [Citation.] Faced with an ambiguous or equivocal statement, law enforcement officers are not required under Miranda, supra, 384 U.S. 436, either to ask clarifying questions or to cease questioning altogether.' [Citations.]" (People v. Suff (2014) 58 Cal.4th 1013, 1068 (Suff).)