Rose Patterson (pictured) was held in Greater Manchester by Merseyside Police this morning in an apparent bid to foil a plan by more than 100 eco-activists to wreck today s race.
Animal rights protesters attempted to climb over fences to gain access to the grounds, as well as breaking onto the grass ahead of the race - only for them to be carted off to the delight of spectators.
Animal rights chaos at the Grand National in Merseyside comes just weeks after The Mail On Sunday uncovered their grand conspiracy that was plotted in a secret meeting.
Sam Waley-Cohen, 39, rode horse Noble Yeates (50-1), owned by his father Robert, to victory at Aintree. Mr Waley-Cohen had announced his intention to retire as a jockey earlier this week.