Commonwealth v. Vallone

Opinion by

Mr. Justice Horace Stern,

We allowed an appeal by the Commonwealth in this case because there is involved the proper interpretation and application of a rule of evidence which is of extreme importance, especially in its effect upon methods of criminal investigation by law enforcement officers.

Defendant was indicted under the Act of June 24, 1939, P. L. 872, section 517, for knowingly transporting a female for the purpose of prostitution. At the trial the court admitted testimony given by a member of the Pennsylvania Motor Police to the effect that defendant, after his arrest, was…