No, not really. I made this post considering the reality of the majority here.
In Brazil there is no need for a "right to remain silent" because the police inquiry is merely an informative procedure, and all testimonial evidence must be repeated in a judicial audition in which the defendant is assisted by his lawyer. hence, there is no risk that he or she will involuntarily create proof against him/herself.
It's a completely different mentality regarding the process instruction. I like Brazilian system better because, as it demands less formality from police authorities, there is virtually no possibility of ruining a case because a cop screwed up a reading.
All formality is concentrated in the hands of authorities best capable of handling them, like judges or justice promoters (loosely analogous to the character of "DA"s in US legal system, though promoters have a higher status - analogous to judges - and enhanced attributions).
Nevertheless, unless a person is caught in the act (flagrant), he/she cannot be arrested except with a judicial order. That's the extent of formality for Cops here.
Regards
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