Four tanneries have been closed and six people have been arrested after a number of inspections carried out in Nairobi (Kenya) by the agents of NEMA (National Environment Management Authority). They closely checked the sewage system of a few factories located in the industrial area of the capital city. As reported by local information media, allegedly authorities detected, after the inspection, five companies that were up to illegal activities: more specifically, they were supposedly discharging sewage, prior to any treatment, regardless of whichever control. Evans Nyabuto, NEMA communication manager, pointed out, while speaking to Nairobi News, “six people were taken under arrest and their companies were forced to close not to carry out any further operating activity”. Four factories, out of the five ones involved in the investigation, are tanneries: namely Mas Tannery, Far Horizon Hides & Skins, Amin Tanners and Nairobi Tanners Limited. The fifth one is a textile firm.