Benazir gave birth to Asifa when Zardari was in jail.
Now two possibilities, either Asifa is not Zardari's daughter, or Zardari was awarded "Business Class" in the jail.
Similarly, Mr. Haraam Khor Sharif was allowed a bail and the court even asked the government to give guarantee of his life, if he is not allowed to go out of the country. Later, he was found on Qatar Airways First Class munching all his favorite food, and was never required to submit independent blood work reports from the UK.
Someone later disclosed that Haraam Khor Sharif provided dog's blood to the lab.. Anyway, the blood of Haraam Khor Sharif (based on his previous samples) and the dog's sample had uncanny resemblance that doctors couldn't suspect a difference.