Again a confusing muddle involving Shabir Shaik, in which the authorities managed to upset just about everybody and to achieve nothing of value. Again, medical problems were invoked, but never adequately explained or justified. All this, and without even hiring Max Clifford!
It's rather unusual to imprison someone simply while investigations proceed, unless perhaps one seriously expects witness-tampering or intimidation. The outcome might be seen as raising exactly those suspicions. But then, wouldn't it be wiser to offer potential witnesses some sort of serious witness protection programme and help them resist any attempts at tampering or threats?