Leading South Island jockey Chris Johnson has returned a positive test to cannabis.
The Racing Integrity Unit stood the 52-year-old down from riding following a random test at the Rangiora trials on Wednesday.
Johnson has a career tally of 2103 winners, 50 of them this season.
The Racing Integrity Unit stood the 52-year-old down from riding following a random test at the Rangiora trials on Wednesday.
Johnson has a career tally of 2103 winners, 50 of them this season.