There were some prominent ulema in UK giving a talk. The men and women were separated but the man giving the talk could see both women and men and the women could see him. Is this permissible?
بسم الله الرحمن الرحيم
(Fatwa: 497/497/M=04/1435)
This way is not right as non-mahram men and women should observe purdah, it is unlawful for male speaker to look at non-mahram women and for women to see the non-mahram man without any Shariah necessity.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband