A young couple temporarily detained for identification following a brawl in Maroussi, northern Athens, walked out of the local police station with a service revolver, six bullets and a pair of handcuffs, police admitted yesterday. The two made immediate use of their loot, robbing a passer-by at gunpoint. Elpiniki Kornarou, 23, and Constantinos Kappas, 19, were to have been charged late yesterday, while a police inquest was ordered into how they managed to make off with the unguarded firearm and ammunition. Police officers detained the two late on Friday after they were involved in a fight with Christos Doutsias, 17, on the Maroussi electric railway station. All three were taken to the Maroussi Police Station, where they were released shortly afterwards. About an hour later, a man contacted the police to report that he had been robbed at gunpoint by a young man and woman, again in the Maroussi area. The description matched Kornarou and Kappas, who were duly arrested early on Saturday and found to be in possession of the loaded service revolver and a pair of handcuffs.