"In the last five years since we've had that court service centre open, I've dealt with over 8500 people - not documents, but people."
Before she became a JP, Thomson took on the role of school principal at Woodford House in Havelock North and said she's always been extremely committed in whatever work she does.
"As a teacher you're there to help your students learn to the best of their ability and when I think back, my parents installed a sense of commitment and responsibility when it came to taking things on.
For example, I couldn't join a choir and then a few months later decide to quit because I didn't like it. I had to think about it properly and make a commitment for a year.
Working as a JP doesn't come without its difficulties. Thomson often sits on the bench at court assisting with arrests, often seeing the same faces through the justice system.
"It's just a case of dealing with it, moving onto the next one and putting it aside. It's hard sometimes. If you got upset about these things it doesn't do, because when you're sitting on the bench you've got to think judicially, not sentimentally."