The House of Commons Library has published a Research Briefing detailing the progress of the Border Security, Asylum and Immigration Bill during its Commons committee stage. Members of Parliament (MPs) undertook a six-day scrutiny of the Bill, which followed its second reading on 10 February 2025—a reading that resulted in a 333 to 109 vote. The Committee made no major amendments, opting to instead include two new clauses proposed by the government, one concerning the use of ankle tags for migrants with criminal convictions and the other addressing legal complications arising from post-Brexit residence rights.The briefing indicates that while certain provisions, such as law enforcement access to customs data and measures derived from a previous Conservative government criminal justice bill, encountered minimal opposition, other elements prompted divergence among MPs. Disputes focused on whether the powers entrusted to the Border Security Commander were sufficiently robust, the effectiveness of the new immigration offences, and the adequacy and safeguards associated with the powers to seize mobile phones from migrants. Further contention was observed over proposals to repeal the Safety of Rwanda (Asylum and Immigration) Act 2024 (SR(AI)A 2024) and most of the Illegal Migration Act 2023 (IMA 2023), with differing views expressed by Conservative, Scottish National Party, and Liberal Democrat MPs. The government has announced that additional clauses will be proposed at the Commons report stage scheduled for 12 May 2025.