You know as well as i do , coercive interrogation is unreliable . 強制尋問は信頼性に欠けるぞ
The data are mainly collected by sampling surveys , but the collection rate is generally low , thus the data are not very reliable . サンプル調査によらざるを得ないことが多いが、一般に回収率が低く、信頼性に欠ける。