How much do you trust your teenagers?
Because that's really what this - installing spy software on their phones - comes down to.
The issue arose at a Rotorua Coroner's inquest into the death of a text-bullied teen who'd had an affair with a much older married man.
A software company gave evidence at the inquest stating that if New Zealand telecommunications companies got behind the initiative, spy software could be available on all New Zealand cellphones for $200,000.
The business operates through a website that allows parents to sign up their child's cellphone number and then see any calls or texts made to and from the phone.