Abstract: A tamper resistant parcel delivery box includes a container configured to receive packages therein. A lid is secured over the container via a hinge and a locking interface is secured to the container and has a retractable deadbolt. The box also includes a locking bar having a first end and a second end, where the second end cooperates with the retractable deadbolt. A catch is secured to an underside of the lid to lock the first end of the locking bar to the lid when the deadbolt is extended to force the first end into the catch. In addition, the box includes a tamper prevention circuit configured to selectively prevent the locking interface from actuating the retractable deadbolt when the lid is open.

Abstract: A tamper resistant parcel delivery box includes a container configured to receive packages therein. A lid is secured over the container via a hinge and a locking interface is secured to the container and has a retractable deadbolt. The box also includes a locking bar having a first end and a second end, where the second end cooperates with the retractable deadbolt. A catch is secured to an underside of the lid to lock the first end of the locking bar to the lid when the deadbolt is extended to force the first end into the catch. In addition, the box includes a tamper prevention circuit configured to selectively prevent the locking interface from actuating the retractable deadbolt when the lid is open.