An inquiry into activities at top trainer Ben Currie's stable on race morning at Toowoomba will resume after material gathered is examined.

Currie said he had done nothing wrong and was confident he had nothing to worry about.

The Queensland Racing Integrity Commission issued a media release on Saturday about the inquiry rather than leaving it to stewards.

It is a policy that any information from investigations by QRIC's intelligence bureau is released through its commissioner Ross Barnett.

The leading trainer on winners this season in Queensland, Currie had 18 runners on Saturday and won the feature Weewtood Handicap and Toowoomba Guineas.

Barnett said members of the QRIC's Integrity Investigations Team observed one of Currie's employees acting suspiciously near a number of horses on Saturday morning.

"IIT officers have interviewed the employee and trainers Mark Currie and Ben Currie about their observations and have also seized some items from the stable including CCTV equipment which they believe will assist them in their inquiries," Barnett said.

"Stewards opened an inquiry and took initial evidence from the stable employee Mark Currie and Ben Currie and a QRIC veterinarian has taken saliva, urine and blood samples from seven horses."

All the horses concerned were allowed to run.

QRIC could not put a date on when the inquiry would resume.

It will have to wait on results from the tests on the horses, equipment taken from the stables and examination of CCTV footage.

It is believed this will take at least a week.