Mayor Gaynor, when a judge, in a famous opinion (more familiarly known in the lower world even than the Decalogue) laid down the law unequivocally and emphatically in this regard.

Thus, in the Fisher case, the defendant having been arrested on the street, the detectives desired to search the apartment of the family with which he lived.

They did this by first inducing the tenant to open the door and, after satisfying themselves that they were in the right place, ordering the occupants to get in line and "march" from one room to another while they rummaged for evidence.

"Of course, we had no right to do it, but they didn't know we hadn't!" said the boss.
But frequently the defendant knows his rights just as well as the police.

On one occasion the same detective who arrested Fisher wanted to take another man out of an apartment where he had been run to earth.