indicator's in a car insurance.

[belvo]

so i had a car crash today nothing big im fine and there car has little damage but im not sure if its my fault or the other driver. i was waiting in a side street waiting to go on to a main road it was very busy so i waited for my time so when it came a person had there indicator on when they came around the bend on the road and veared in to the turn lane so i pulled in to traffic only got like a meter as i pulled in the person turned there indicator of and carried on and crashed in to me.

any body know the rules about indicators in car crashes.