A woman vendor waits for customers as she uses her phone at the 'Computer Village' in Ikeja district in Nigeria's commercial capital Lagos on May 31, 2017. Nigeria’s police have used telecom surveillance to lure and arrest journalists. (Reuters/Akintunde Akinleye)
A woman vendor waits for customers as she uses her phone at the 'Computer Village' in Ikeja district in Nigeria's commercial capital Lagos on May 31, 2017. Nigeria’s police have used telecom surveillance to lure and arrest journalists. (Reuters/Akintunde Akinleye)

How Nigeria’s police used telecom surveillance to lure and arrest journalists