Sheikh Mohammed has been cleared of any direct involvement in the Godolphin Racing doping scandal by an internal inquiry.
Sheikh Mohammed hired former Metropolitan Police chief commissioner Lord Stevens to review reports following the discovery last year of unauthorized veterinary products at Moorley Farm in Newmarket, owned by the sheikh's Darley Stud operation, and on a private jet at Stansted Airport.
The doping scandal last year led to the downfall of Godolphin trainer Mahmood al-Zarooni, who was banned for eight years by the British Horseracing Authority for using steroids on his horses.
The report says the seizures resulted from ''management failings, insufficient oversight, and complacency within the organization,'' but concluded Sheikh Mohammed had no knowledge of illegal operations.
