Reuters/Kingston, Jamaica

The Court of Arbitration for Sport (CAS) blasted Jamaican anti-doping officials on Tuesday for the mishandling of a drug test by sprinter Veronica Campbell-Brown that led to a successful appeal of the three-time Olympic gold medallist’s two year ban.

In a scathing 58-page report explaining the decision to uphold Campbell-Brown’s appeal, a CAS panel cited errors in the collection and handling of the sprinter’s urine that could have resulted in contamination of the sample, calling into question the entire Jamaican anti-doping operation.

“In this case, the evidence before the panel establishes that the JAAA (Jamaica Athletic Administrative Association) has persistently failed to comply with the mandatory partial testing,” said CAS. “That systematic and knowing failure, for which no reasonable explanation has been advanced, is deplorable and gives rise to the most serious concerns about the overall integrity of the JAAA’s anti-doping processes, as exemplified in this case by the flaws in JADCO’s (Jamaica Anti-Doping Commission) sample collection and its documentation.”

Jamaican officials were not immediately available for comment.

Jamaican athletics, the world’s top sprinting power, has been rocked by a disturbing string of doping scandals with eight Jamaicans failing doping tests in 2013.

Last week former 100 metres world record holder Asafa Powell was banned for 18 months by a Jamaican panel after he tested positive for a banned stimulant in 2013 while his former training partner Sherone Simpson received an 18-month suspension from the same panel for the same substance.

Both have appealed their suspensions to CAS.

Another Jamaican, Olympic discus thrower Allison Randall, was also handed a two-year ban for using the prohibited diuretic hydrochlorothiazide.

Campbell-Brown also returned a positive test for hydrochlorothiazide at the Jamaica International Invitational meeting in Kingston on May 4 and in October was given a public reprimand by a JAAA disciplinary panel.

But after a doping review board of the International Association of Athletics Federations (IAAF) recommended a two-year doping ban, the Jamaican panel put the suspension in place in February.

Campbell-Brown appealed the ban, her lawyers arguing that international standards were violated during her sample collection, thus compromising the integrity of the samples.