Good morning.My Boyfriend ,was detained yesterdarday for 8 hours.The police handcoffed him with out telling hjis rigths.

I am not sure what rights he was supposed to be told?  Miranda is a myth propogated by TV crime shows.  The only time you have to be advised of your rights if you are being interrogated while in custody.  Most people who are arrested never hear Miranda warnings.  If he feels his civil rights were violated by the detention (and they may have been) he should contact a civil rights attorney who can do a more thorough factual intake and guide him as to what options he has.