There are reports champion Victorian trainer Darren Weir could hand in his licence ahead of a show cause hearing and inquiry into jiggers found in his stable

The career of leading racehorse trainer Darren Weir is in limbo with owners moving horses pending an inquiry into devices known as jiggers found in his stables.

The three trainers who had horses return positive samples to a banned substance at the Burrumbeet jump-outs have each been fined.

Three Victorian trainers are each facing fines of up to $5000 over positive swabs to an anti-inflammatory drug.

Darren Weir and Simon Morrish have had horses test positive to a banned substance followings jump-outs at Burrumbeet.