RACING NSW chief steward Ray Murrihy will review the evidence from the Midsummer Sun cobalt inquiry in the next week but it appears certain  there will be further charges.

CHRIS ROOTS reports in the SYDNEY MORNING HERALD that suspended trainer Sam Kavanagh is facing eight charges from Midsummer Sun and race-day treatments of two other horses, but he has not been asked to respond to them as yet. 

"It would be fair to say we have a multifaceted inquiry into the Midsummer Sun's positive swab. The source of the bottle was of certainly the point of interest in the inquiry [on Tuesday]," Murrihy said.  "The inquiry has several branches but the who, how, when and why factors of the source [of the bottle] is very important in the case. We have more than just the analyst findings.

 "Whether there is going to be more charges for Kavanagh or other parties is what we need to consider after reviewing the evidence."

The opening day of the inquiry was centred on the source of the "Vitamin Complex" bottle that was found to have a high concentration of cobalt, and allegations it was supplied by  Tom Brennan, who is a 50 per cent partner in the Flemington Equine Clinic. 

Kavanagh was stood down last month after he made admissions involving  cobalt following a positive swab to caffeine and cobalt taken from Midsummer Sun, which was  part-owned by Brennan, when it won the  Gosford Cup.

 He told stewards he had received two bottles by express post from Flemington Equine, and Brennan in particular, and had paid $1000 each for them in cash. Brennan denied those claims and that  he sought  to influence Kavanagh in his evidence  on Tuesday, but admitted the cash payments of $1000, which he said it was for drenches. He took cash after Kavanagh had reached his $70,000 credit limit with the practice. 

Flemington Equine practice manager Aaron Corby also repeatedly denied trying to influence Kavanagh, even though he made trips to see the trainer and the practice's Sydney staff shortly after the cobalt finding from Midsummer Sun. "There are still people from Flemington Equine we want to interview. People should understand how important this case is to racing and the sharing arrangement in place with Racing Victoria has been helpful," Murrihy said.

The nature of cobalt was revealed in the inquiry, with Kavanagh saying he stopped using it on Midsummer Sun after  it was left "shaking, trembling, sweating up".

The couple of bottles of cobalt found at Sam Kavanagh's stable appear to be the smoking gun as racing tries to fight the cobalt.