An investigation shows Dr Nigel Murray spent around $220,000 on travel and accommodation - more than half was unjustified.
Moareen Rameka was killed on Sunday when she and other children were playing on a railway overbridge.
The NZ rail provider says they’ve spent a lot of money securing the bridge an 11-year-old girl died on over the weekend.
The bridge over the Waikato River is a favourite spot for local children to jump off in the summer months.
Andrew King says the name 'Hamilton' came from a British armed forces captain who died about 150 years ago in Tauranga - having never visited the area of present-day Hamilton.