1, 2, 3, 4 are invalid as he is not jailed for any crime but detained under "Maintenance of Public Order act", this act give administration some power to restrict movement of someone as preemptive measure to maintain order. (Which actually is not logical in his case and he will get court verdict in his favor on this as well) and this i tried to explain in previous posts, if you still can't understand than don't waste my time by quoting me.
5. Yes - As per law he should be free as there are not enough evidences to prove him guilty that's why he got bailed from courts.
6. Dig history, BBC also published lot of things over Modi's role in Gujarat massacre, if you hold BBC reports as universal truth than believe on those reports as well.
PS: I don't care Lakhvi was involved in Mumbai attack or not, I just want all trouble making Mullahs dead.