Considering getting some work done at your place? These resources may be useful.
WorkSafe New Zealand
When you hire an electrician to do work on your home, make sure they are licensed and issue a Certificate of Compliance for their work.
Getting electrical work done(external link)
Things to check and consider for your building project before you can start hiring designers or contractors.
Plan a renovation(external link)
Always hire registered or licensed tradespeople for restricted building work. You will have more rights under consumer laws if anything goes wrong.