That is further from the truth. Just look at your response regarding NAB. If you really think that NAB was an instrument of oppression and a tool used by dictators against opposition, then why IK Niazi continue to foster it during his tenure.
he must have found some usefulness of this tool of oppression against his own opposition. Didn't he?
It was not really a matter of who was in power when this dictatorial tool was used to register the cases but rather who was there who was hell bent trying to extract the most lies out of those tools which you also considered dictatorial in nature. If he really wanted to stop this machine of oppression, he could have abandoned the NAB and declared it illegal. But obviously, as all hypocrites do, he used it for his own benefits and advantages and still try to avoid taking responsibility for its consequences.