The mother of a man who was accidentally killed by his friend driving a speed-boat says it's time for a complete overhaul of boating rules.
Andrew Wroe died on Lake Ohakuri, south-west of Rotorua, at the start of last year after the sea biscuit he was riding was hit by another boat driven by his friend.
The inquest heard the two boats towing ski biscuits were taking part in a competition that required them to round two warning buoys on a 600-metre course.
One of the ski biscuits collided with the other boat as it rounded a buoy.
At an inquest into his death on Thursday, the coroner Wallace Bain signalled he is likely to recommend tougher rules for boaties.
The victim's mother, Jan Wroe, told Checkpoint she agrees the system needs an overhaul.
However, Ms Wroe says she wouldn't want her son's friend charged with manslaughter.
At the inquest Mr Bain said boat operators need to be aware of restrictions while on the water, such as travelling at 5 knots when passing another boat within 50 metres.
Mr Bain said the public's patience with boating incidents is running thin.