I agree with the noble Lord that there is unanimity on the importance of tackling child sexual abuse online and taking measures to further restrict that and make it harder. As my noble friend Lord Hanson made clear during the passage of the Act, device-level nudity detection can play an important role in preventing children taking, sharing or viewing nude imagery.
This measure really looks at how to prevent those images getting online. That is a very important part of the strategy; it stops harm before it happens, in addition to the law enforcement activity that must happen in parallel. It applies to both old and new smartphones and tablets, and we expect tech companies to set up controls so that, if a parent hands down a phone, for example, all they have to do is reset it to enact this operating-level facility.
In respect of making sure that legislation is ready, as the Minister for Online Safety said in the other place yesterday, he is working carefully and closely in parallel with the Home Office to draw up legislation should that be needed, should the protections not be put in place at scale as expected.