ANALYSIS: Paris became the first European city to ban the use of rental e-scooters under a law that came into force in September, and concerns have been raised in other towns and cities in the UK and elsewhere about riders breaking the rules; but research by Senior Lecturer Dr Petya Ventsislavova and colleagues at Nottingham Trent University has found that a lack of knowledge of the law – rather than a desire to flout it – is behind most rule breaking by riders.