The registration number of any strange vehicles or the description of strange people can be very helpful. Remember the old adage, it's no use closing the stable door when the horse has gone. Telephone the Police immediately, they may initially think that your horse has just strayed. Many horses reported stolen, later rum up as having strayed. Make local enquiries also.
Many horse thefts take place on a night preceding a sale.
Telephone the Auctioneers yourself. You will find most of them co-operative, however, please remember that many stolen horses do not enter the sale rings. The thief uses the gathering of dealers and agents at the sale to find a buyer, and the transaction then takes place outside the sale yard. You can identify the horse, but remember to take photographs and identity documents with you, it is essential. Look closely at all horses of the same body colour, size, age and sex.