A bench of the high court has ordered the government to submit its detailed reply within one week.
Jamshed Dasti MNA yesterday challenged the Protection of Pakistan Act in Islamabad High Court.
The bill passed by the parliament was recently signed into an act of law by the President.
In his petition, Dasti, an independent lawmaker elected from southern Punjab, has claimed tgat the law violates the fundamental human rights.
The petitioner said that the law grants unlimited powers to the law enforcement officials and could be used against political opponents.
The Protection of Pakistan Act violates the fundamental human rights and the constitution, petitioner said.
The law will remain in force for two years.
Under the law a suspect can be kept in detention for 60 days. The law also empowers a grade-15 officer to open fire over a suspect after issuing warning.