Can anyone who knows about law/how the police work tell me if i'll have a warrant out for my arrest for this? A few weeks ago i bumped into someone's car gave my details and it turned out my insurance cancelled the policy a week before, the lady told the police and i received a letter asking me to fill in it i was the driver/nominate someone else if someone else was driving. It said for failure to give information and something to do with having no insurance. I haven't sent the letter back yet as i've been busy in the run up to christmas, my issue now is that my ex is here for christmas to see my daughter and he's got drunk and is being aggressive i feel i may have to ring the police if he gets any worse but will i be arrested if i do that?