"The Kaitaia Child Protection Team, led by acting Detective Dalzell, was responsible for the increased reporting of incidents of child abuse to police by Northland and other New Zealand citizens, knowing immediate steps would be taken to ensure children's safety and well-being." "
Mr Evans' citation also noted his professionalism, commitment and team work in the investigations, and as officer in charge of another high-profile investigation.
"Both offenders pleaded guilty to numerous abuse charges committed on children over a number of years. These were significant results based on sound investigation techniques, working collaboratively with the community.
"Detective Evans showed tenacity and dedication in identifying and supporting a number of victims and witnesses. Without his professionalism, perseverance, patience and empathy in working with victims and witnesses the result obtained would not have been possible."
Mr Dalzell acknowledged 2012 had been a "big year" for the Child Protection team in bringing offenders against children to justice.