restriction by the law

基本解释

The system base of administration by law includes the method system base and the restriction system base of administration by law.
依法行政的制度基础包括依法行政的方法制度基础和依法行政的制约制度基础。
Although the disciplinary power is an inherent power of the employer and is based on contract, the discipline of employees by employers should be subject to the restriction by law.
雇主惩戒权既是雇主的一种固有权力，又建立在契约基础之上。在法律上有必要对雇主惩戒权实行必要的规制。
Penal policies are guidelines for both penal legislation and penal judicature. But the guidelines ought to be rational, which is the restriction to the penal policies by rule of law.
尽管刑事政策要指导刑事立法和刑事司法，但这种指导应是理性的、有正当根据的，这也是刑事法治对刑事政策的限制。

法律制约
And we carry on the restriction by the law to individual exercising public power, just because of that the restriction by the law is a preferable method to restrict.
而法律制约是对个人行使公共权力进行制约的上佳选择。