Ancient UK Treason Law Could Bring Terrorists to Justice

Renu, the eldest sister of Shamima Begum, holds her sister's photo whilst being interviewed by the media at New Scotland Yard in London on Feb. 22, 2015. Laura Lean/PA Wire/Getty Images

LONDON—An ancient British treason law could be used to bring members of ISIS who return to the country to justice, the UK’s interior minister has suggested.

Home Secretary Sajid Javid said the 1351 Treason Act could be modified so terrorist groups like ISIS that intend to attack the UK are included.