'Suicide' website Ask.fm heightens tension between gangs, say police The warning comes amid a growing backlash against Ask.fm which was widely criticised after being linked to a series of teenage suicides. There was an outcry following the death of 14-year-old Hannah Smith from Leicestershire who had suffered months of abuse from bullies on the website. She was the fourth teenager in Britain and Ireland whose suicide was linked to "trolls" on the site who posted vile and threatening messages. Campaigners urged leading charities and companies to withdraw advertising from the site in a bid to damage its revenues, with several announcing that they would severe ties with the firm. The internet firm has been accused taking little action to moderate comments from users who post messages anonymously. However, earlier this week its co-founders announced a raft of changes to the site which included making a "report button" more prominent and hiring more staff to work as moderators and review bullying claims. Other tactics being used to crackdown on gangs during the Bank Holiday weekend carnival in West London will include the use of 17 "super recognisers" for the first time. The officers specialise in recalling hundreds of offenders' faces, names and birthdays, and will monitor CCTV images throughout the event in a bid to identify those breaking bail conditions or committing crime. Ch Supt Mick Johnson said: "We are intent on ensuring that those who plan on coming to the carnival to commit crime of any kind are prevented from doing so, which is why we will be using a team of super recognisers. This will enable us to quickly identify offenders on the day and ensure that if they are not caught at the event, we will be able to track them down and arrest them afterwards.