A useful link for A Level Economics students http://www.bbc.co.uk/news/business-44155130 relating to Financial Regulation and where to find the relevant section within the spec:
Edexcel spec reference 4.4.3 a) Key functions of central banks:

  • role in regulation of the banking industry

AQA spec reference 4.2.4.4 The regulation of the financial system 
OCR spec reference P27 Financial Regulation
https://www.apt-initiatives.com/