One of top local trainer Brian Kan Ping-chee's recent winners has shown signs of being positive to a prohibited substance at the first sampling stage. The Jockey Club's laboratories are understood to have yesterday sent out the reserve sample - each horse sent for a dope test has its sample divided in two - to confirm or refute the original findings. If the reserve sample also comes back positive, there will have to be a full Jockey Club inquiry to establish responsibility. If it comes back negative that is likely to be the end of the matter. It is believed Kan's recent but as yet unnamed winner has shown a positive to a common anti-inflammatory cream that is used on cuts and to reduce soreness in joints and muscles. Last night, the parties most closely involved threw a veil of secrecy over the matter. Chief stipendiary steward John Schreck, normally known for his openness with the press, stonewalled with a flat 'no comment'. Kan would not discuss the matter either. But it is known that Schreck was in discussion with the Jockey Club's chief veterinary officer Keith Watkins yesterday. The results of the overseas testing are likely to be known in a week. The Jockey Club policy is to send for dope testing every winner and virtually every favourite. If the favourite wins, it is often the horse that runs second to the favourite who is sent for testing. In this case it is believed it was, indeed, one of Kan's many recent winners who, at this first and so far inconclusive stage, is showing signs of a positive to the anti-inflammatory drug. Kan, four times the champion trainer in the late '80s, has been enjoying a vintage campaign. His Industrialist has won the Audemars Piguet Queen Elizabeth II Cup and the Gold Cup, Kan himself has broken George Moore's previous mark for the most winners trained in Hong Kong, and a treble on Sunday took Kan to 45 winners for the season. He is second in the standings, nine behind Tony Cruz. Meanwhile, Hong Kong's history horse Fairy King Prawn, plus his victorious connections, will be feted at Sha Tin on Saturday night. Fairy King Prawn became the first Hong Kong-trained horse to win overseas when taking Sunday's $13 million Yasuda Kinen in Tokyo. The Jockey Club is planning a parade in front of the grandstands and a special presentation to the winning owner, Philip Lau Sak-hong, trainer Ivan Allan and jockey Robbie Fradd. 'We will be doing something special for such a special achievement,' said director of racing Winfried Engelbrecht-Bresges.