Police and cricket chiefs broke up a betting cartel operating at the Cricket World Cup opener.
International Cricket Council spokesman Sami Ul Hasan last night confirmed to the Herald on Sunday that officials had seized a man providing information to an offshore betting syndicate during the Black Caps' emphatic win over Sri Lanka at Christchurch's Hagley Oval.
The man was posing as a cricket fan but was caught "pitch-siding".
Police said he was one of several caught during the Black Caps' victory.
It's understood the man was using his cellphone to provide the group with information on the outcomes of deliveries bowled in the match.
Gamblers offshore received that information before the slightly delayed broadcast and could make bets on what happened.
"This gentleman was using his communication device to provide match information," Ul Hasan said. "He has been ejected.
"As far as we were concerned he was breaching the ticketing policy, providing match information on his communication devices [and] chucked out."
The ICC and other sporting bodies have cracked down on the gambling tactic, which Ul Hasan described as "illegal".
Pitch-siding, also known as court-siding, is not illegal in New Zealand. It differs from match-fixing, which is the manipulation of results.
However, Superintendent Sandy Manderson, operation commander for the tournament, said anyone caught would be trespassed from all World Cup venues.
On the eve of the event, Sir Ronnie Flanagan, head of the ICC's anti-corruption and security unit, confirmed it would crack down on pitch-siding during the event.
He said those involved were not restricted to punters trying to beat the odds of legitimate betting outfits.
"The risk is this feeds into a wider and more sophisticated network of illegal betting, often in the Indian sub-continent," he said.
Ul Hasan said yesterday the ICC was unaware if the man had tickets for any of the other 26 World Cup matches in New Zealand.
"You can get them from the black market, from official sources ... there are lots of ways of buying tickets. It is very difficult to find out how he got tickets."
It was not known last night whether the the man was a New Zealander or one of the 30,000 visitors here for the tournament.
In 2013, spectators at two matches between the Black Caps and England were caught pitch-siding. And across the Tasman the same year, a British national well-known to police and the ICC was busted for providing information to offshore betting syndicates at two domestic matches.