the charge would be obstructing a police officer. what it should be is obstructing a police officer from earning a few hundred quid in revenue and dishing out a load of points thus earning brownie points of superiors. slowing traffic down is the last priority, they much rather catch someone speeding as sticking to limits doesnt offer scope for officers who wish to be promoted. i respect the police but by and large, traffic officers are WANKERS along with pcso.