Can a police officer arbitrarily handcuff and arrest someone without cause and without giving miranda rights?

An officer needs reasonable suspicion to stop you and probable cause to arrest.  If there is no probbale cause and you are arrested a good attorney can get the charge dismissed.  Miranda rights are only necessary if you are under arrest and being questioned.  If the miranda warning is not given that does not invalidate the arrest it would invalidate any information learned in questioning.