Call for more web users to report internet trolls
Calls have been made for internet users to do more to report offensive material used on social media to police.
It comes a day after Robert Riley, from Port Talbot, was jailed for eight weeks for posting offensive messages on Twitter following the stabbing of teacher Ann Maguire in Leeds.
Online safety experts say reports by users are key to tackling internet trolls.
Matthew Richards reports.
09 May 2014