Things are quiet of late still, mainly due to heavy workload and some other activities, but I have received a response from MP Des Browne, following my initial letter to my MP back in December.
I've only just transcribed it into electronic format (so apologies for any typos), but rest assured there are plenty of points to respond to in it, along with some interesting (to me) tidbits such as the definition of "serious crime" ("...is conducted by a large number of persons in pursuit of a common purpose").
As usual, the Home Office tends to ignore any sensible point about the proposals, opting instead to submit back to me their own stock set of arguments as explained patiently to the media every time the issue arises. By the looks of it, the letter isn't a standard form one (which is heartening - I like having attention paid to me ;), but I wouldn't be surprised if there was some copying and pasting from a "standard response" document somewhere. The usual vaguaries are also abundant, for instance:
"Law enforcement agencies ... will be able to seek disclosure of information from the Register for specified purposes e.g. for the prevention or investigation of crime."
So when something is "specified", it's nice and broad then.
I will try and find some time to concoct a decent reply asap. It's nice to know that maybe maybe I have their ear for a change, too.