Tariq Ramadan is accused of raping a woman in a hotel room in Geneva in 2008. He is due to appear in court in Geneva on Monday.
In a letter to the French courts, he accuses them of trying to influence the case. He says the French judges "violated international conventions" by not releasing all the documents they had requested from the Swiss court. He denies the charges against him, which he says date back nearly 15 years, and he is due in court on Monday for trial.