Aha - I've just gone hunting and found this.
http://www.teacherscouncil.govt.nz/r...eclearance.stm
UK & Northern Ireland1) You can apply to MPS Public Access Office, 20th Floor, Empress State Building, Empress Approach, Lillie Road, London, SW6 1TR. Request a Form 3019 and more information is available from their website:
www.met.police.uk/information.
OR
2) If you are immigrating to New Zealand you can apply to the Association of Chief Police Officers, ACRO, P O Box 481, Fareham, PO14 9FS, UK. Request a police certificate. Further information is available from their website:
http://www.acpo.police.uk/.
Note: We do accept standard or enhanced disclosures issued through Disclosure Scotland, however these must cover the entire period of time you were in the UK. If you have a police clearance issued within 6 months of the date you left the country this can be considered.
So unless the last paragraph fits your case, you'll have to do what they say in point 2, seemingly.