Ajmal was able to bowl without chucking. Now he couldn't bowl well without chucking was a different issue.
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Solution is to not allow chuckers in main XI. Catch and eliminate them in domestic games.
No. The facts are as follows:
Ajmal was involved in a bus accident many years ago.
That led to damage in his writs, which led to the bones in his arm creating an angle which made it look like he was supposedly chucking.
He was checked out in the biomechanics lab, cleared and given a medical exemption.
His ban came into place when the exemption was no longer accepted by the ICC, due to a rule change.
It took him bowling 30000 deliveries to change his action to something different, thus losing what he once had.
This raises the questions on medical exemptions, which have been applied to numerous bowlers in the past, most famously Murali and Akhtar. Imagine if they existed in the modern environment, their careers would likely have been over too. There is also the zero tolerances attitude that was not present in the past, which would likely have severely derailed the careers of the likes of Harbhajan Singh and Brett Lee.
So we have to take all this into context.