What is ironic about a Taliban judges at Mariam's trial saying, "God has made us different,women and men. Our brains are different..."The quote...

Mariam has killed her husband, Rasheed to save the life of  Laila.  To give Laila a chance at a happy life with her children Mariam is put on trial for the death of her husband.  If Rasheed had killed Laila there would have been on charges brought against him and he would not have suffered on day in jail, but the Taliban does not have just laws for women in an abusive relationship.  They have no legal recourse.

The judge remarking that "Western doctors and their science have proven this." is ironic because the whole belief system of the Taliban is to fight against the Western belief system and to call on the evidence of Western doctors to justify their condemnation of women is pure hypocrisy.  The Taliban reject all Western technology, philosophy, and call the Western culture and it's people infidels.  Yet, when it needs to prove a point and justify this order of execution of a woman who has killed her husband the lead judge draws not on Taliban faith or beliefs but Western scientists.  This is a good example of verbal irony.