Section 29(4) in The Motor Vehicles (Driving) Regulations, 2017
(4)Interacting with the other driver, -(i)once the initial shock wears off and it is apparent that no one has been seriously hurt, tempers may flare and all persons involved in the accident shall refrain from losing temper or provoking any other person or persons;(ii)the driver or any other occupant shall get the other driver's name, address, contact information and insurance details, and provide the same to him;(iii)if an amicable settlement cannot be made, call the police immediately;(iv)if police has been informed, all persons involved in the accident shall remain at the scene until the investigators arrive and permit them to leave.
