What would you like to know about this please?
Did you report the use to the police?
How did this person get your keys?
You can raise this defence.
To be wholly honest, there is a significant risk it will be disbelieved. Unfortunately quite a lot of people do claim that a visiting friend who has now left the country was driving their car.
There are some websites that encourage people to do that which is actually perverting the course of justice but there you have it.
If it wasn't you and you didn't know then you can raise this defence.
Whether or not they would find it credible is another matter.
It might be difficult to get them to accept that this person took your keys without anybody knowing at all.
You might also need to explain why you didn't have your keys with you. I realise that you may not have been driving but most people keep their keys on them most of the time.
It is not really a question for you but they will probably wonder why your girlfriend didn't take action when she realised that your keys had been taken.
Obviously you do face the risk of costs if it goes against you.
Can I clarify anything for you?
A] Yes, it is generally better but it will rack up costs so you have to balance that.
B] Yes, he needs to come. If he does not then they won't be able to consider his evidence. We don't do sworn affidavits in criminal courts. Witnesses come to give evidence and face cross examination unless, of course, they are making allegations of domestic abuse in which case they waste public money by not attending.