Hey!
Awesome to hear you're interested in Cardiff

This is as of 2025 entry, and may be subject to change! But, on the
Law course page, under entry reqirements, then under "other qualifications from inside the UK", it will tell you that BTEC is accepted if you achieve:
"DDD in a BTEC Extended Diploma in any subject."
When course pages, such as Cardiff's, don't specify courses for entry requirements, its most likely because there are no specific courses you need to have to apply
However, there
is mention of courses they don't accept:
"We do not accept Critical Thinking, General Studies, Citizenship Studies, or other similar equivalent subjects.We will accept a combination of BTEC subjects, A-levels, and other qualifications, subject to the course specific grade and subject requirements."
Hope that helps - let me know if I can help any further!
~ Fatiha, Cardiff University Student Rep