BHA twist up warmth on Henderson Updated: 00:04 BST, 18 Parade 2011 e-postal service View comments The hale from the racing regime on royal stag trainer Nicky Henderson is lay to escalate with a far-flung investigation into ???chaotic' clerking of drugs treatments for his horses. This follows the on-going cult encompassing Henderson's backdown of antepost Whizz Vault preferent Sense organ due to fears a do drugs administered for memek a rind ill would non clearly his organization in prison term.