Five persons have been arrested by the Railway Protection Force (RPF) for soiling Central Railway trains leaving CST with excreta. The RPF claimed that as per their investigation and monitoring of late-night trains, the arrested were drug addicts. They were produced in court on Friday and fined Rs 1,000 each. However, as they were unable to pay the fine, they have been sentenced to a month in jail.On April 3, 45-year-old hotel receptionist Akhlaque Ahmed suffered injuries when he let go the grab-handle of a local train’s coach whole boarding as it was covered with excreta. Ahmed, who had boarded the train at Sandhurst Road station, was dragged along on the platform by the speeding train, and suffered knee injuries.The RPF had been monitoring suburban trains on CR since the Mumbai Mirror report on how late night trains were soiled with poop. RPF officials said the accused --Mohammad Saddam (24), Fazrul Hasan (20), Chandan Kumar (19) and Om Mahesh Kumar (20) were nabbed by a special team.“We had set up patrolling teams to keep an eye on the night trains after we received complaints. The team has managed to nab these culprits,” Alok Bohra, senior divisional commissioner, RPF said.Last August, Mirror had reported about how CR trains were being delayed by 15 to 30 minutes as someone was smearing excreta in the ladies’ compartments of trains leaving from Karjat.