There are many questions unanswered:
1. Why would IB mislead the Gujrat police? IB is a central body where as Gujrat police is state. How come both have the same intelligence?
2. David Headly's testimony that Ishrat Jahan is a LeT operative is being ignored WHY??
3. Why was Ishrat Jahan and co. targeted?? Why not others??
As far as CBI is concerned, their reputation is worse then IB. They are a bunch of government puppets.
You have misunderstood the whole controversy.
1. There was no misleading of the Gujarat police by the IB. Nobody has claimed this; where did you get that from? It is the IB's job to pass on such information to the local police, and it was doing its job in passing on the news.
Both did not have the same intelligence. The Gujarat police knew only what it was told by the IB.
This passing on of the news was never controversial.
2. David Headley? Are you completely demented? Please learn three things:
A) Ishrat Jahan and the other three were killed in 2004;
B). David Headley was arrested in 2009;
C). There was NO statement by David Headley about Ishrat Jahan, only some sensational reports by the media, with NO evidence to back it. The NIA denied this completely, and it was the Indian agency rwponsible for interrogation of Headley.
The most important point is none of these: EVEN IF ISHRAT JAHAN AND THE OTHER THREE WERE IDENTIFIED AS TERRORISTS, THE GUJARAT POLICE HAD NO LEGAL RIGHT TO KILL THEM.
3. Because Vanzara was building himself a reputation for a defendant against terror attacks, to justify his other activities. He needed to keep his bosses happy. And, for your information, THIS WAS NOT THE ONLY GROUP HE MURDERED.
Each of your assumptions is wrong. Do your homework better please.