《宋史·列传·卷二十六》
从前，朝廷常派台吏巡察郡臣逾越法度者，昌言建议请按照旧例，令左右巡使分别兼任此事，正好知审刑院赵安仁、判大理寺韩国华判案不公被解除职务，昌言于是上言： 审刑官应当慎重选择，从今以后，有判刑不当者，应严加惩罚，授任远地做官职，如果有罪被审不立即引伏的，允许追捕。
先时，多遣台吏巡察群臣逾越法式者，昌言建议请准故事，令左右巡使分领之。会知审刑院赵安仁、判大理寺韩国华断狱失中解职，昌言因上言： 详断官宜加慎择，自今有议刑不当，严示惩罚，授以远官，若有罪被问不即引伏者，许令追摄。
In the past, the court had often sent officials of the censorate to investigate local officials who had exceeded their authority. Changyan proposed that, following ancient precedents, the two inspectors from the left and right should be put in charge of this matter. As it happened, Zhao Anren, the head of the Court of Criminal Justice, and Han Guohua, a judge in the Dali Temple, had been dismissed for unfair judgements, and Changyan therefore submitted a memorial stating that the selection of officials for the Court of Criminal Justice should be carried out with great care. From now on, he said, anyone who passed an unjust sentence should be severely punished and given a post far from the capital. If a person had committed an offence and failed to confess immediately when questioned, he should be allowed to be hunted down.