Call 111 if anybody is hurt, if you suspect drugs or alcohol are involved, or if the other party refuses/fails to exchange details.
Call Cityhop on 0800 2 2489467; we are available 24/7 for emergencies.
Take down all relevant information such as the registration numbers of all vehicles involved, driver details(name, phone number, address, licence details, date of birth), and details of any independent witnesses and photographs of the incident. Please forward these to firstname.lastname@example.org
If the police have been called, please take down the police number and the name of the officer who has attended.