A U.S. Customs and Border Protection agent at a traffic stop in the I-95 southbound lane between Howland and Lincoln, where CBP agents were questioning the citizenship status of drivers and passengers, June 21, 2018. Credit: Alex Acquisto

U.S. Rep. Chellie Pingree is sponsoring legislation that would shrink the size of the border enforcement zone where federal agents can stop vehicles without warrants.

The Department of Homeland Security is currently allowed to stop vehicles without warrants only within 100 miles of the U.S. border, and the new legislation would shrink that to within 25 miles of the border.

The Portland Press Herald reports under current law, Customs and Border Protection has authority to conduct warrantless citizenship checks throughout the entire state of Maine.

[Border patrol agents arrest 1 at I-95 checkpoint about citizenship]

The Border Zone Reasonableness Restoration Act was introduced Thursday and has a number of Democratic co-sponsors.

Pingree says the warrantless searches are a waste of resources and infringe on her constituents’ freedoms.

Homeland Security says it has been increasing transportation checks across the country.