Athens Olympics relay champion Sherone Simpson has been suspended for eighteen months after testing positive for the banned stimulant oxilofrine during last June's Jamaican trials.
Simpson was the second Jamaican athlete to be handed a doping ban on Tuesday as Olympic discus thrower Allison Randall was suspended for two years after she too failed a drugs test during the 2013 national trials.
Powell will hear his verdict on Thursday.
Published 09 April 2014, 17:35 IST