When I was 23 I was coming out of a village, super rural at 12-30am on my way home from work one Saturday evening, accelerating out and a police car was hidden in a turn in and got pulled doing 43mph in a 30. I got a fine of £60 and 3 points.
They were on a crack down for drink drivers. Got the full nine yards, walk, Breathalyzer, good talking too.
I thought that was harsh as I was heading out into a national speed limit but I broke the law. Anyway its the severity 30mph zones are the worst as they are high risk areas. If you work it out I was doing nearly 50% over the limit... 53 is nearly double the limit and may be a ban, depends on how lenient they are feeling. If its a crack down which many of them are, the fact she is a young driver and should have her lessons fairly fresh in the memory then they may make an example.
The worst bit is the documentation in small local papers. I used to work for a small newspaper and they used to publish all the small court cases like that, super embarrassing.