Richardson ban reignites debate on cannabis rules in sport

Richardson’s period of ineligibility, which began on June 28, was reduced to a month because her use of cannabis occurred out of competition and was unrelated to sport performance.

American sprinter Sha’Carri Richardson’s one-month ban on Friday after her positive test for cannabis has reignited the debate about the logic behind the drug’s inclusion on the World Anti-Doping Agency’s (WADA) banned list.