In the most populated ward, how many incidents of domestic violence were reported in a bar or tavern?
the most populated refers to max(population); domestic violence refers to domestic = 'TRUE'; in a bar or tavern refers to location_description = 'BAR OR TAVERN'
SELECT COUNT(T2.report_no) FROM Ward AS T1 INNER JOIN Crime AS T2 ON T1.ward_no = T2.ward_no WHERE T2.domestic = 'TRUE' AND T2.location_description = 'BAR OR TAVERN' ORDER BY T1.Population DESC LIMIT 1