The Law Commission will investigate the issues raised by lawyers researching jurors on the internet, then tailoring their arguments to help them win cases.
The phenomenon, labelled unethical by a British judge, will be considered as part of a wider review this year.
The practice has come to light in at least one New Zealand case, but the legal fraternity said there was little chance of it prejudicing a trial here.
It is understood that in that case lawyers asked for a trial to be aborted after uncovering a relationship between a juror and a witness through internet searches. The judge rejected the application.
While the Bar Association of lawyers in Britain is drawing up guidelines on lawyers researching jurors, the president of its New Zealand counterpart said he couldn't see anything wrong with the practice. "Google is a legitimate source for information. The police go there, so why not lawyers?" Criminal Bar Association president Tony Bouchier said.