The NYPD has admitted its targeted surveillance of Muslims in New York and New Jersey turned up nothing. That’s good news for a Muslim advocacy group suing the department over civil rights concerns.

Recently released court documents show the six-year program turned up no leads and never triggered a terrorism investigation.

Glenn Katon is one of the attorneys representing a group of Muslims who claim the program violated their civil rights.

He says this development could give him a leg up in one of the biggest challenges he’ll face in court.

 “It’s pretty hard for the NYPD to come into court and say, 'This is vital to our national security,' and have the judge feel like if she doesn’t rule in favor of the NYPD, it’s going to cause a big terrorist attack.”

Katon believes they’d have a case even if the program turned up results. He says the blanket surveillance of any community based on religious beliefs is grounds enough.