Isle of Man Sport anti doping policies:
https://www.isleofmansport.com/media/1522/isle-of-man-anti-doping-national-compliance-platform-policy-v11.pdf

UK Anti Doping (UKAD):
https://www.ukad.org.uk/

World anti doping (WADA):
https://www.wada-ama.org/en

Badminton England anti doping rules:
Anti-Doping Rules | Badminton England