 The result, we learn later in the opinion, is that what "Gerstein" meant by "a brief period of detention to take the administrative steps incident to arrest" is two full days.I think it is clear that the case neither said nor meant any such thing….…Of course even if the implication of the dictum in "Gerstein" were what the Court says, that would be poor reason for keeping a wrongfully arrested citizen in jail contrary to the clear dictates of the Fourth Amendment.