The immigration judge who made the controversial decision to grant a Palestinian family the right to live in Britain is the son of a former Guardian journalist who campaigns against Israel online.

On Tuesday, The Telegraph revealed that Judge Hugo Norton-Taylor had granted a family of six seeking to flee Gaza the right to live in the UK, despite them applying using a scheme meant for Ukrainian refugees.

The judge’s father, Richard Norton-Taylor, who spent years writing for The Guardian on security and defence, regularly tweets about the Israel-Hamas conflict, often attacking Israel.

Last March, the 80-year-old journalist, who now writes for the Declassified UK website, endorsed a petition on X calling for Haringey council, in north London, to “stop supporting genocide in Palestine”.

Two months later, he urged his followers on X to write to their MPs demanding that the Government “recognise Palestine” without negotiations.

In December, he reposted a video of a huge banner covering Parliament Square by Led By Donkeys, the campaign group, which said: “Yes it’s a genocide”.

Meanwhile, in a video for BBC Two’s Daily Politics show in January 2016, he had argued that Britain should return the Falklands Islands and Gibraltar.