Waikato road policing manager, Inspector Leo Tooman, said he understood the man, who was on his way home at the time of the crash, had an old paper driver's licence instead of a photo identification licence.
Photo driver licences replaced paper ones in the late 1990s and drivers caught using an expired licence face up to a $1000 fine.
"He's forbidden until he obtains a photo licence," Mr Tooman said.