Many horses are on the move from Darren Weir's stable with owners scrambling to find suitable trainers to take over.

Weir is fighting for his career after being charged with possession of electronic devices, commonly known as jiggers, and asked to show cause why he should be allowed to continue training pending the inquiry.

A five-time Victorian champion trainer and Melbourne Cup winner, Weir and his assistant, licensed trainer Jarrod McLean, were arrested on Wednesday after Victoria police and Racing Victoria stewards raided stables at Ballarat and Warrnambool.

After beginning a show cause hearing on Friday, RV stewards ordered horses trained by the two to be scratched over the weekend.

They included Nature Strip, the odds-on favourite for Saturday's W J Adams Stakes at Caulfield who is now slated to join the Chris Waller stable.

Sydney's premier trainer said nothing had yet been signed regarding the transfer of any horses and he would travel to Melbourne on Monday.

"I have had calls from people but I will know more when I go down there," Waller said.

Waller operates stables in Sydney, Melbourne and the Gold Coast.

Newcastle trainer Kris Lees confirmed Group One winner Brave Smash was headed to his stable and he expected more to come from Australian Bloodstock, one of his major clients.

The show cause hearing will continue in Melbourne on Monday afternoon.

The trainers will be able to nominate horses as usual on Monday morning for upcoming meetings but an unfavourable result at the hearing would mean they would need to be transferred.

Racing NSW has given Weir until Tuesday to respond to a show cause notice regarding running horses in the state.

DARREN WEIR STARS ON THE MOVE

Chris Waller: Nature Strip, Yes Yes Yes, Hulk

Kris Lees: Brave Smash

Ciaron Maher Racing: Extra Brut, Night's Watch, Land Of Plenty

Lindsay Park: Amphitrite, Hawkshot, Chauffeur and an as-yet unraced two-year-old. More expected

Patrick Payne: Banachek, Invincible Amici, Nussink

Archie Alexander: Gallic Chieftain

Phillip Stokes: All Too Hiyung arrived on Saturday morning, along with six owned by syndicator Wylie Dalziel. He is expecting a number of Peter Moody-owned horses

Peter and Paul Snowden: Expecting to receive several horses

* Robert HIckmott: Trap For Fools (transferred from Jarrod McLean)