The legislative branch can check the judicial branch by its power to

The legislative branch can check the judicial branch by its power to remove Judges through impeachment.

Explanation:

The Constitution has established the principles of separation of powers and maintained the system of checks & balances among the three main branches of the government. The legislature is bestowed with the power of making laws for the country and executive with implementation and judiciary ensures redresses any grievances for the violation of the law.

In their separate domain of powers, each keep check on the other as the judiciary has the power of judicial review, therefore, any law which violates the constitution is declared ultra vires. In the same way, the legislature is given the power of impeachment to keep a check on the judiciary as in case of exceeding the power by any judge he or she can be removed by the process of impeachment.