The internal police force run by state-owned railway company SNCF is supposed to protect both passengers and other rail staff from attack or abuse. But officers in one section of the force in the south of the France have been accused of sending a racist text message, playing neo-Nazi songs and mistreating passengers of North African origin. According to documents seen by Mediapart, senior management at SNCF is fully aware of the claims, yet has failed to take any action. Meanwhile one of the officers who was a victim of the taunts has been ostracised by colleagues. Michaël Hajdenberg reports.