Find the community area where the least number of domestic crimes happened.
least number of domestic crime refers to Min(Count(domestic = "TRUE")); community area refers to community_area_no
SELECT T2.community_area_no FROM Crime AS T1 INNER JOIN Community_Area AS T2 ON T2.community_area_no = T1.community_area_no WHERE T1.domestic = 'TRUE' GROUP BY T2.community_area_no ORDER BY COUNT(T2.community_area_no) ASC LIMIT 1