Racing Queensland will go ahead with outstanding cobalt inquiries under the rules in place despite trainers calling for a review.
Racing Australia has asked for a report on the science of cobalt following a request from the Australian Trainers Association.
A group of Queensland scientists and veterinarians has increased its calls for a national inquiry into cobalt related cases.
Gold Coast trainer Kelly Doughty will continue her fight against a conviction in a cobalt case which again will bring current rules into question.
Suspended trainer Ben Smith has been found guilty of 10 charges regarding elevated cobalt levels, race day treatments and giving false evidence.
Trainer Ben Smith has fronted a Racing NSW stewards inquiry relating to illegal cobalt levels and giving false evidence.
Trainer Archie Alexander is under investigation after one of his horses returned a high cobalt reading after winning a maiden race at Kilmore.
Father-and-son training partners Lee and Shannon Hope face a wait to find out how long they will be disqualified for administering cobalt to three racehorses.
The Racing Appeals and Disciplinary Board has disqualified trainers Terry and Karina O'Sullivan over horses returning elevated cobalt readings.
An appeal judge has found father and son trainers Lee and Shannon Hope guilty of administering cobalt to affect the performance of three horses in...
Father and son training partners Lee and Shannon Hope have lost an appeal against their cobalt disqualifications.
Former trainer Robin Bastiman has been disqualified for three years after administering a horse with a substance that contained elevated levels of cobalt.
Queensland trainer Darryl Gardiner has been disqualified for 12 months on a cobalt related charge.
Queensland trainer Victor Newman has been disqualified for a second time on a cobalt-related charge.
A judge has reserved his decision in father-and-son training partners Lee and Shannon Hope's appeal over their cobalt disqualifications.
Victorian training partners Lee and Shannon Hope are appealing their cobalt bans, arguing there was an inadvertent administration through feed and supplements.
Lee and Shannon Hope's appeal over their cobalt disqualifications is going ahead despite them pleading guilty to a lesser administration charge.
A horse trained by Richard Laming has returned a sample showing cobalt above the allowed threshold in a test taken before a race at Ballarat.
Rockhampton trainer John Pointon has been suspended for six months after one of his horses returned a positive to cobalt after a barrier trial.
Trainer Belinda Dunn has been charged by Racing Victoria stewards after cobalt was detected above the allowed level in a horse in her care after...
The Racing NSW Appeals Tribunal has dismissed disqualified trainer Sam Kavanagh's appeal against conviction for cobalt offences.
Racehorse trainers Lee and Shannon Hope want urine samples to be re-examined with a new testing method as they fight bans for giving cobalt to...
Deagon trainer Jason Edwards has appealed his 12 month-disqualification on a cobalt charge.
Toowoomba trainer Rochelle Smith will appeal a 12 month disqualification on a cobalt charge involving one of her horses.
Trainers Danny O'Brien and Mark Kavanagh have begun legal proceedings to seek damages after being found not guilty of administering cobalt to horses.