Part 2: Lawful interception of communications Chapter 2: Other forms of lawful interception Section 44: Interception with the consent of the sender or recipient
Subsection (1) provides that communications may be intercepted if both the person sending the communication and the intended recipient of the communication have given consent for the interception to take place.
	Subsection (2) states that the interception of a communication is authorised if either the sender or the intended recipient has consented and surveillance has been authorised under Part 2 of RIPA, or under RIPSA.
Example:
A kidnapper is telephoning relatives of a hostage, and the police wish to listen to the calls in order to identify or trace the kidnapper. The intended recipient of the communication (i.e. the relatives of the hostage) consent to the interception. That means that the police listening to the call can be authorised using an authorisation under Part 2 of RIPA and an interception warrant is not required.