"Sex offenders subject to notification requirements 1.-(1) A person becomes subject to the notification requirements of this Part if, after the commencement of this Part--- (a) he is convicted of a sexual offence to which this Part applies; (b) he is found not guilty of such an offence by reason of insanity, or to be under a disability and to have done the act charged against him in respect of such an offence; or (c) in England and Wales or Northern Ireland, he is cautioned by a constable in respect of such offence which, at the time when the caution is given, he has admitted."
"(4) A person falling within subsections (1) to (3) above shall continue to be subject to those requirements for the period set out opposite a person of his description in the second column of the following table."
"Effect of discharge 14.-(1) Subject to subsection (2) below, a conviction of an offence for which an order is made under section 12 above discharging the offender absolutely or conditionally shall be deemed not to be a conviction for any purpose other than the purposes of the proceedings in which the order is made and of any subsequent proceedings which may be taken against the offender under section 13 above." ... (3) Without prejudice to subsections (1) and (2) above, the conviction of an offender who is discharged absolutely or conditionally under section 12 above shall in any event be disregarded for the purposes of any enactment or instrument which--- (a) imposes any disqualification or disability upon convicted persons; or (b) authorises or requires the imposition of any such disqualification or disability."