Troubled trainer Patrick Biancone was yesterday given the all-clear to declare eight runners for Saturday night's big Grand National fixture at Sha Tin. These will be the master French mentor's first runners in 10 days following the drugs scare which has plagued his stable leading to 40 per cent of his horses testing positive to the decongestant Sputolosin. By order of an on-going Board of Inquiry into the biggest drugs mystery since racing turned professional in the early '70s, Biancone yesterday had to submit all his intended runners for special pre-declaration testing. All eight returned negative and Biancone was left to breathe a sigh of relief. He said: 'I hope this is now finished and that we can get back down to business.' Biancone intends to run both Helene Star and Got It Made in the feature event, the L'Or de Martell Cup for which Helene Star will be one of the favourites despite topweight of 140 pounds. His Double Expresso, an impressive winner of two of his past three outings and one of the most improved horses in training, will take a huge amount of beating in the Martell Medaillon Handicap for which he will be priced accordingly. And his filly Beijing Star, who worked well on Tuesday morning, will be all the rage for the griffin event. The stable's other intended runners are Aqua Princess, Lucky Afleet, Well Done and Xanthus. Biancone is joint top of the standings with Ivan Allan on 32 winners having already lost one winner when Charming Guest was disqualified on Monday having been one of the many from the stable to test positive.