Law & Order: Office Assistant Unit

Cue those famous two tones: "doon-doon..."

Justine Faeth's favorite show is "Law & Order Special Victims Unit."  And the Manhattan office assistant recently used detective skills she picked up from the show to help cops catch a man accused of a string of robberies.

The suspect walked into the production company where Faeth works. Police say he stole an employee's purse, an iPod and a wallet.

Before leaving, he drank water and blew his nose. Faeth saved the cup and tissue. Investigators used DNA samples from the items to track down and arrest a suspect.

On Thursday, Faeth appeared on NBC's "Today" show. Actress Mariska Hargitay, who plays a "Law & Order" detective, called in to express her "awe." They even discussed the possibility of Faeth doing a walk-on.