The UK’s online regulator, Ofcom, has launched its first investigation into an individual online service provider under the Online Safety Act, targeting a pro-suicide forum linked to at least 50 deaths.

While Ofcom has not publicly named the site, it is understood to be the same platform investigated by BBC News over the past three years – a forum with tens of thousands of members, including children, where users discuss methods of suicide and share instructions on how obtain materials to carry out the act.

The investigation marks a critical step in enforcing the Online Safety Act, which became law in October 2023. After months of developing guidelines, Ofcom gained new powers last month to take action against platforms hosting illegal content, including material that assists suicide.

The regulator is now examining whether the forum’s operators have failed to implement required safety measures, conduct proper risk assessments, or respond adequately to information requests.

Families affected by the forum have welcomed the move, but urged Ofcom to act swiftly when speaking to the BBC.

Among them are the parents of Vlad Nikolin-Caisley, a 17-year-old from Southampton who took his own life in May 2023. Evidence suggests he was coached and encouraged by forum members before purchasing a poisonous chemical and following step-by-step instructions found on the site.

Under the new law, all platforms must now demonstrate they have systems to remove illegal content. If they fail to comply, Ofcom can impose fines of up to £18 million or seek court orders to block access in the UK.

However, the investigation faces challenges, including the anonymity of the forum’s operators and its US-based hosting.

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Ofcom’s process will involve gathering evidence before issuing any enforcement notices. If breaches are confirmed, the regulator could require immediate changes, levy substantial fines, or pursue business disruption measures, such as cutting off payment services or requiring ISPs to block the site.

This case is part of broader enforcement efforts under the Online Safety Act. Last month, Ofcom began assessing file-sharing platforms for failures to prevent child sexual abuse material, and in January, it scrutinised age verification for online pornography. Further actions are expected as additional online safety duties come into force.

For now, the focus remains on the unnamed suicide forum – a heinous site that is long overdue a reckoning.