To catch a cheater - GPS trackers help Auckland private investigators track suspected cheating partners

New Zealand private investigators are using GPS tracking devices to follow suspected cheating partners, as new technology helps uncover cases of an old problem, infidelity.

Seven Sharp joins two private investigators on the hunt for a suspected cheater. Source: Seven Sharp

Seven Sharp headed to a rural part of Auckland to meet two private detectives who work for high profile private investigator Julia Hartley Moore and were on a mission to uncover a suspected cheater. 

"The aim is to put a GPS tracker on a car. We have got permission from the client who's the owner of the property, and the car, to do that," one of the investigators explained. 

The detectives drove to a car park, installed the GPS tracker on the car, and confirmed the device was up and running.

You might think the age of social media would make cheating harder, but Ms Hartley Moore says it can work both ways.

"People are having affairs that have gone on for five, 10 years. This technology nowadays can make it easy to betray, but it makes it easy to get caught," she said.

Ms Hartley Moore said she probably has more female clients than male clients, "and that's simply for the reason that women catch their husbands out far more than men catch their wives out".

"Just as many women play around as men. It's just that women don't get caught. It's because women are crafty," she said.

"Probably 95 per cent of women, once they have irrefutable evidence, stay."

Asked how important is it for people who suspect they're being cheated on to find out the truth, Ms Hartley Moore said: "I think if you don't find out it can make you sick, because you dwell on it. It completely consumes you."

She said: "Knowledge is a power. It's better to know the truth than to crucify someone who might not be doing it."