Re: 1990 election was rigged: SC
MI’s role is limited to defensive domestic counter-espionage, hunting down foreign agents.
ISI’s justification in the presence of MI is that ISI’s role is external, offensive intelligence, running foreign agents.
IB’s role is limited to domestic intelligence gathering, spying on Pakistan’s citizens.
The problem is that ISI has spread into MI and IB’s area. ISI is needed, but more control is needed to limit ISI’s domestic activities.
For example, ISI should not be spying on Pakistani politicians. IB should be spying on politicians, unless IB finds evidence that those politicans are foreign agents, in which case MI should take over. ISI should not be involved at all.