"But much remains to be done. The crash site must be properly secured, with unimpeded access for the appropriate international investigating authorities."
New Zealand police had won international recognition in disaster identification with their experience in other tragedies such as the Christchurch earthquake and the Asian tsunami, Mr McCully said.
The three police staff were now en route to the Netherlands, said Superintendent Barry Taylor, national manager of operations.
The Interpol Secretariat General (IPSG), which was co-ordinating the body identification process, had accepted an offer from New Zealand to assist, he said.
"We are pleased to be able to contribute to the international response effort, which is testament the skills and experience of our staff in the DVI field," Mr Taylor said.
"DVI work is an exacting, challenging process which takes time, but our staff will be very focussed on working with their international colleagues to identify the victims and help their grieving families."
The New Zealand staff would be part of an international DVI team headed by Dutch authorities at Hilversum, Netherlands.
The Kiwi trio were on an initial deployment of three weeks, with the possibility of a second three-week rotation of three other staff after that, Mr Taylor said.