The trouble "occurred in October but additional incidents may have occurred throughout the holiday season," Glen Rock Police Chief Dean Ackermann explained.
Ackermann's detectives and a special agent from the Office of Inspector General of the U.S. Postal Service took the clerk into custody on Tuesday. The clerk's name was temporarily being withheld.
Ackermman asked that anyone in the area who may have been a victim contact the inspector general's office: 1-888-877-7644.
Click here to follow Daily Voice Fair Lawn-Glen Rock and receive free news updates.