Gary and Mary West, owners of Maximum Security, have filed a lawsuit seeking to have the Kentucky Derby disqualification of their horse overturned in court.

Maximum Security was first past the post at Churchill Downs, but the stewards found him to have caused interference to War Of Will, with Long Range Toddy and Bodexpress also impacted.

Following a lengthy deliberation, the stewards awarded the race to outsider Country House, with Maximum Security demoted to 17th, behind Long Range Toddy.

The Wests' appeal to the Kentucky Horse Racing Commission was turned down last week and they have now filed a lawsuit that refers to the disqualification as a “bizarre and unconstitutional process”, according to a statement issued to www.bloodhorse.com.