He backs the experimental rules that allow players to appeal to the television umpire against an on-field umpiring decision.
The International Cricket Council trial allowed an umpire review system for the first time during the Sri Lanka-India series earlier this year. The challenge system allows players to refer decisions made by on-field umpires on whether a batsman has been dismissed to the third umpire. The television official will review the coverage and relay information to the on-field umpire for a final decision.
There has been a late change for the first test between the West Indies and New Zealand, with Koertzen in the hot seat as television umpire.
Koertzen (59) has been replaced on the paddock by English umpire Mark Benson, who will share on-field duties with Indian umpire Amish Saheba, standing in his first test.
"They changed it to give me a break because I did the two tests between Australia and New Zealand," Koertzen said yesterday.
"Some of the umpires are not happy that players can challenge their decisions. But I don't mind.
"The Sri Lanka-India series was the first time that commentators had nothing bad to say about umpires.
"We all make mistakes and it is easy to say that we are human and make that as an excuse. But we want to get it right."
He believes the new system will end the frequent controversies that have been aired in the media over decisions highlighted on television.
"It is not nice for umpires to get up in the morning and see their name in the newspaper because of a bad decision," Koertzen said.
"If the technology can help us, we should use it."
Koertzen would like the initiative over a doubtful decision to come from the umpire and not the players.
"When an umpire is not 100% sure he should go upstairs before he makes a decision," he said.
"If I had doubts in my mind, I would rather ask the television umpire to review it for me."
In the Dunedin test the third umpire will be able to review every aspect of the decision when a player challenges the umpire.
"I won't be making the decision for the on-field umpire. I will just be giving information about what it showed on TV."
The tests series between the Black Caps and the West Indies will be the second in a series of trials in which eight of 10 test nations will play under the experimental rule.
The ICC will assess the rule once the nations have provided feedback.
Koertzen umpired his first one-day international and test match in 1992 when South Africa returned to international cricket after 20 years in the international wilderness.
"I was honoured to stand with David Shepherd," he said.
"He was my idol as an umpire.
"Amish Saheba is a good umpire. I have got confidence in the man and he will make the grade."
