Olympic gold-medalist Asafa Powell was one of five Jamaicans to fail doping tests before this year's world championships.
Olympic gold-medalist Asafa Powell was one of five Jamaicans to fail doping tests before this year's world championships.
Michael Steele/Getty Images

KINGSTON, Jamaica (AP) -- The director general of the World Anti-Doping Agency says Jamaican officials must respond to allegations that their drug-testing procedures are deficient.

Writing this week in Sports Illustrated, the former executive director of the Jamaica Anti-Doping Commission said Jamaica's anti-doping commission had numerous "troubling'' problems during her tenure. Renee Anne Shirley says just one out-of-competition test was done between February 2012 and the start of the London Olympics five months later.

WADA Director General David Howman says Shirley has raised several "serious issues'' that need to be investigated by the Montreal-based organization.

Howman also told The Associated Press on Wednesday that Jamaica should "transparently and publicly'' respond to Shirley's statements.

He says the problems raised by Shirley must not be "repeated as we go forward.''

Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide - from Peter King, Tom Verducci, Lee Jenkins, Seth Davis, and more - delivered straight to you, along with up-to-the-minute news and live scores.