Dr DUNCAN WEBB (Labour—Christchurch Central): Thank you, Mr Speaker, and it's a pleasure to speak briefly on this bill, the Child Protection (Child Sex Offender Government Agency Registration) Amendment Bill. I really wanted to just touch on a few points of constitutional significance. I note the Attorney-General's report, which touches on the fact that in the Attorney-General's view, the original legislation changed the penalty and, in fact, increased it by the imposition of the register, and, therefore, where there is an increased burden across time, the lower of those two penal burdens should be borne by the offender. The register, arguably—look, it's a register of addresses, personal details, and so on so that the police can monitor people who are a risk to the community, and it certainly isn't intended to be a form of punishment. It's simply there for the safety of the community. So I think, when the balancing is done in terms of the burden of retrospectivity, such as it is, it's very modest indeed. 