As of today, Peter Kyle is the UK's new Secretary of State for Science, Innovation and Technology, which means he's the elected official responsible for UK AISI. Here are some brief notes I found on Peter Kyle's stance on AI (all from his Wikipedia page).

• Peter Kyle was appointed as Shadow Secretary of State for Science, Innovation and Technology in September 2023.
• In October 2023, Kyle said that a future Labour government would reduce regulations on technology companies in the development and use of AI and "put it to work for everyone from every background."
• In November 2023, Kyle outlined Labour policies to impose stricter regulations on general AI research companies such as OpenAI and Anthropic with stronger requirements for reporting, data-sharing, and user safety. Kyle has also proposed the creation of a 'Regulatory Innovation office', which would expedite important regulatory decisions.
• In February 2024, Kyle announced that Labour would scrap the existing voluntary testing agreement between technology companies and the British government, instead creating a statutory regime in which AI businesses would be required to share with the government the results of their test data.
• He claimed that this would enable the government to better understand the risks involved in AI and the challenges it could pose to different industries and society in general. He also met with representatives of the United States government and AI companies in Washington, United States, including Microsoft, Amazon, Meta, Google, Apple, OpenAI, and Anthropic.