Heather Brooke
Department of Journalism City University
Paul Lewis
head of investigations The Guardian
Investigative journalism case studies - a set of four events (one per day from Thursday 25 to Sunday 28 April)
Can a crowd investigate? And how can journalists harness the power of social media when holding powerful to account. Using two case studies, Paul Lewis, the Guardian's special projects editor, will reveal how Twitter can be used to find out what authorities don't want you to know. Introduction by Heather Brooke.