Harris Vs New York Case Study

In the case Harris v. New York, 401 U.S. 222 (1971) Harris was accused of offering in heroin to a covert officer on two events. In any case, Harris took the stand in his own safeguard yet denied the offense, and he asserted he sold the officer two sacks of baking powder. On round of questioning the arraignment utilized repudiating proclamations made by Petitioner to police not long after his arrest. The contradicting statements were made before Petitioner got his Miranda warning. Okay, I understand about the Miranda cautioning not given before Harris affirmation, but rather shouldn't something be said about the proof? Is it accurate to say that it was tested to be heroin or baking