A group involving attorneys, privacy advocates, and journalists early this week are urging the Dutch court to shoot down a data-retention law allows the government to easily access telecommunication data it believes can fight off crime and terrorism.
The same group is asking the District Court of The Hague to carry out a preliminary injunction and formally declare the law to be unconstitutional.
The Hague court is expected to make a ruling on the issue by next month.
The suit is the latest in the past decade of legal hurdles to the data-retention law across Europe.
In the Netherlands, where the law was carried out in 2009, data must be left stored for up to one year.
The Dutch government is looking to expand surveillance capability following the latest terrorist attacks in Copenhagen and Paris as well as an increase in homegrown radical Muslims.
Ivo Opstelten, the Dutch minister of security and justice, indicated that data storage is essential to monitoring Jihadist groups and other crime types including child porn networks.