arrests without warrant

arrests without warrant Sec. 211. (a) Arrests without a warrant, and searches of the person and seizures pursuant thereto, may be made for a violation of any of the provisions of section 203 of this title by police officers, as in the case of a felony, upon probable cause that the person arrested is violating such section at the time of his arrest. (b) No evidence discovered in the course of any such arrest, search, or seizure authorized by this section shall be admissible in any criminal proceeding against the person arrested, unless at the time of such arrest he was violating section 203 of this title.