A County Lines drug gang has been jailed for 40 years after a taxi driver on their payroll accidentally recorded himself boasting about their crimes on his own dash cam.Between March 20 and July 22 last year the gang moved around a kilo of crack cocaine and heroin into Derby.The gang were nailed after they recruited taxi driver Shahid Iqbal, 41, who transported drugs and dealers around the city.He unwittingly kept his taxi dash cam on while ferrying drug runners around and was recorded boasting about their crimes.