It is true that railway security inspectors turned positive after training in Beijing. According to the recruitment information of the training courses for train drivers, security inspectors and flight attendants of the railway head office, it takes three months for the paid training of railway security inspectors to become a full member and pay five insurances. The salary is about 3500 yuan, including food and accommodation, and the working place is Beijing West Railway Station or South Railway Station. Therefore, it is true that the railway security inspectors turned positive after going to Beijing for training.