Some 320 of the UK's most dangerous child sex offenders have been arrested since the first coronavirus lockdown, the National Crime Agency (NCA) said. Investigators have been focusing on tracking down offenders who operate online. The operation led to a total of 4,760 arrests and 6,500 children safeguarded between April and September last year. Meanwhile, the Home Office has launched a strategy to collect detailed data about child grooming gangs. The Tackling Child Sexual Abuse Strategy aims to identify and convict offenders who operate in groups by gathering more information about their characteristics, including ethnicity. It also involves investing in the national child abuse image database to identify offenders more quickly, protecting police from frequently being exposed to indecent images, and enabling parents to ask officers if someone with access to their child is known to them for cases of abuse.