During traffic jam refugees are trying to stop the trucks to get time to cut them up or to open the lock and get on board. Those who don’t manage to break into are hiding between the tires where the risk of being pinched and trapped is high.In 2015, more than 30 refugees were killed on the highway or by train while trying to get from Calais to the UK.The majority of those who run after the trucks have tried to cross the border for several months. Police checks have increased in 2016 and made it almost impossible to succeed without paying for smugglers.