Paul Diamond was instructed by the Let Kids Be Kids Coalition (LKBKC). The LKBKC sought to challenge the Relationship and Sex Education (RSE) introduced into English schools.
The case did not proceed as the Courts held that any challenge to the law must be brought within three months: this time period was held to commence when the RSE was introduced by Parliament in May 2019, not when the law came into effect in September 2020. This was an unusually strict application of procedural rules preventing a review of the law.
The case was reported in The Daily Telegraph: http://: https://www.telegraph.co.uk/news/2020/07/18/governments-decision-ban-parents-withdrawing-children-relationships/