Officer Morris Was Working as an Undercover Narcotics Officer

Officer Morris was working as an undercover narcotics officer. His team carefully planned a drug buy and obtained a voice transmitter which was taped to Officer Morris's chest. Officer Morris went to the park where he had previously observed drugs being sold. He approached Ned and, using street terms, asked to purchase one ounce of cocaine. Ned replied, "I can give you some now and the rest later." As Officer Morris was getting money out of his pocked Ned pulled out his cell phone and tried to take a picture of Officer Morris. When Officer Morris objected, Ned said, "I just want to be able to identify you when I get my new shipment." Officer Morris immediately alerted his back-up and Ned was arrested. Officer Morris grabbed Ned's phone and looked through his text messages for evidence of who was Ned's supplier. Was a wiretap warrant required for Officer Morris to wear the voice transmitter?

A) Yes, a warrant is required if officers want to use electronic devices without notifying all parties that their conversation is being monitored.
B) Yes, a warrant is required whenever officers use electronic surveillance devices.
C) No, a warrant is not required when the Misplaced Reliance Doctrine applies.
D) No, warrants are required to record telephone conversations but not face-to-face conversations.