He has worked in courts throughout the country, including in Christchurch, Napier and Rotorua.
The biggest thing he has seen is his long career has been the change to electronic processing.
"We used to have to write up every register by hand and criminal cases," Mr Conroy said.
"Now it is all electronic it's much quicker. The ministry has provided an efficient system."
Working for the ministry had been an amazing ride until his retirement nine months ago, he said.
"It's an amazing place to work. You work with some fabulous people."
But without wife Christine packing up and moving to new postings with him, he says he wouldn't have been so successful in his work.
"She has been fabulous, moving all around the country with me."
These days Mr Conroy volunteers with Carterton Rotary and is involved with the group set up to save the old Carterton District Court "to be set up as something for the community".
Retirement will see him dabbling in beekeeping, pottering in the garden, "doing the housework" while Christine works and spending "more time with the grandchildren".
"I've bought myself a beehive, so that's turning out to be fun," he said.