Closest answer to correct in this thread. Under s118 of the Land Transport Act (LTA) the Police can require the registered owner to disclose who was driving at a time when an offence is alleged to have been committed. 51kph over the limit is a careless driving offence at least, probably reckless.
If you are served with a s118 notice you\'ll know the game, it speaks for itself- you need to take reasonable steps to find out who was driving, and the Police are likely to ask what steps you\'ve taken. They may still prosecute you at that point for failing to comply with the s118 notice, if they don\'t think you\'ve taken reasonable steps.
If you get the s118 notice and don\'t make any efforts, and just stay silent, Police will prosecute you for failing to give information. Maximum sentence on this is a 20k fine, and there is no mandatory disqualification. Under s80 of the LTA the Court CAN take your licence for this charge, but at their discretion.
Example of sentence: A client of mine\'s car is involved in a crash, it\'s stripped of tags and plates on the roadside, client goes and gets it towed next day, Towing co calls Police, they run the chassis number, find out who owns it, ask him who was driving (s118 notice), he stays silent, they prosecute for failing to give information, he ends up with a $350 fine plus Court costs ($132.89) and no disqualification. Plus legal fees . This was Monday of this week.
Side note: Be careful winning the battle and losing the war. Some Police hold grudges, and they can make your life miserable.
*sorry for the long post