A Melbourne store owner was injected with a substance that rendered him unconscious during a robbery, police say.
The 63 year old man woke several hours after his Footscray jewellery store had been robbed of cash and jewellery.
Police have arrested a 38 year old Ardeer woman and are interviewing her.
They say she may have dropped one of the stolen bags as she ran from the store about 5.30pm (AEST) on Wednesday.
AAP