British champion Zhila Panjavi is banned from all sport for four years after testing positive for steroid use.
The extent of doping in amateur sport - as revealed by a poll for the BBC - is a "concern", says sports minister Tracey Crouch.
UK Anti-Doping says drug use in sport is "fast becoming a crisis" in response to a poll for BBC Sport into doping in amateur sport.
Badminton is one of seven sports to lose its appeal against UK Sport funding cuts for the Tokyo 2020 Olympic and Paralympic cycle.
Audio & Video
UK Sport chief executive Liz Nicholl defends the cuts to seven sports including badminton for the Tokyo 2020 Olympic and Paralympic cycle.