Australia's leading Group One trainer Peter Moody is facing his second drug inquiry in 13 months after a positive swab from recent winner Lethal Arrow.Racing Victoria stewards initially informed Moody of an irregularity on June 16 and on Monday advised him that Racing Analytical Services Limited (RASL) confirmed a post race urine sample contained Oripavine.Oripavine is a narcotic analgesic substance which may act as a stimulant on a horse.Lethal Arrow won the Schweppes 0-68 Handicap (1300m) at P

Australia's leading Group One trainer Peter Moody is facing his second drug inquiry in 13 months after a positive swab from recent winner Lethal Arrow.

Racing Victoria stewards initially informed Moody of an irregularity on June 16 and on Monday advised him that Racing Analytical Services Limited (RASL) confirmed a post race urine sample contained Oripavine.

Oripavine is a narcotic analgesic substance which may act as a stimulant on a horse.

Lethal Arrow won the Schweppes 0-68 Handicap (1300m) at Pakenham on May 17.

Stewards advised Moody their investigation into the finding was ongoing.

In June last year Moody was fined $3000 after pleading guilty to a charge relating to stakes winning mare Returntosender, who tested positive to n-butyl-hyoscine and dipyrone in a post-race urine sample after winning the W J (Bill) Adams Plate (1400m) at Caulfield on April 3.

Melbourne's reigning premier trainer, Moody has a commanding lead this year and is closing in on 100 city winners with 92.5 this season.

He has trained 179.5 winners nationally.

Any suspension would throw Moody's spring carnival plans into disarray including those of his headline galloper, world champion Black Caviar who is unbeaten in 13 starts.

Black Caviar, who only went back into pre-training last week, provided six of Moody's nine Group One wins this season.

Caulfield Guineas winner Anacheeva, Orr Stakes winner Typhoon Tracy and Australasian Oaks winner Lights Of Heaven were his other Group One winners.