The Maine ACLU is calling for a probe into allegations of illegal surveillance by a State Police unit in a federal whistleblower lawsuit.

The lawsuit claims the Maine Intelligence Analysis Center illegally gathered and stored intelligence on gun buyers, power line protesters, and employees at a camp for Israeli and Arab teens.

The state police chief and public safety commissioner said Friday that the unit is following the law while safeguarding privacy and civil rights.

The center was created after the Sept. 11 attacks to collect, analyze and share intelligence between the state and federal government.