Blind leading the blind
Once again fantastic claims of "aiding crime prevention" without a shred of evidence to support them. Ms May appears ill informed, and thinks all she has to do is convince a non-technical parliamentary group to give her something she can wave as a trophy. Where are the subject matter experts, lining up to support her? Scared of peer review I expect.
And does a DSL DHCP allocation to a router go far enough? If not, do they think ISPs can afford to deploy technology to map an individual (ID cards anyone?) to an IP address beyond the NATing router? What about public access points? VPNs? Proxies? RFC1918 addresses? They have no clue.
If she succeeds, as there aren't enough security professionals to vote her out, she will go down as the Home Secretary that gave away our freedom.