The Bar Council explanation of what barristers do:
http://www.barcouncil.org.uk/about-the-bar/about-barristers/
The Bar Council’s Public Access website
http://www.barcouncil.org.uk/using-a-barrister/public-access/
The Bar Council’s Public Access Directory:
http://www.directaccessportal.co.uk/
The Bar Standards Board’s Public Access Guidance:
The Bar Standards Board’s Rules relating to public access:
https://www.barstandardsboard.org.uk/regulatory-requirements/for-barristers/public-access/