Women attending Islamic talks at the Masjid
Q:
1. Is it permissible for women to attend Islamic talks at the local Masjid at night with their Mahrams where there are separate entrances and segregation, but at the time of departure, due to the large numbers there would be an inevitable intermingling of the sexes in the Masjid car park?
2. What would the ruling be in the same situation, but where the lady comes to the Masjid at night without her Mahram and not in niqaab?
3. If the speaker, who is an Alim, knows or should have reasonable cause to believe that women will be travelling to the Masjid on their own at night, without niqab, should he still give a talk or refuse to do so?
4. Would the scholar be complicit in sin if he were to give a talk in such a situation knowing or having reasonable cause to believe that ladies were attending a night talk without their Mahrams and not observing the rules of Hijab?