Pipe bombsNew device dismantles pipe bombs safely, preserving forensic evidence

Published 21 August 2012

Thousands of pipe bombs are made each year, and thousands of pipe bomb threats are called into local police and FBI authorities across the country; many are false alarms, but those that are not can be deadly; dismantling a pipe bomb is tricky and serious business, and missteps during the dismantling process can produce catastrophic results

DHS Science and Technology Directorate’s (S&T) new low-cost device for dismantling dangerous pipe bombs may look like a tinkerer’s project, but this is no accident. The Semi Autonomous Pipe Bomb End-cap Remover (SAPBER) is unassuming in appearance, but sophisticated enough to preserve the forensic evidence needed to track down the perpetrator. “From ten paces away, you might mistake the contraption for a pressure washer,” says S&T program manager Christine Lee. “But step closer and you’ll find an ingenious device bristling with four video cameras, radios, a telescoping mast, cutting wheels, a twisting wrist, an electric motor, and a chain-driven gear, all powered by a pair of 12-volt batteries.”

Eurekalert, citing a DHS S&T release, reports that thousands of pipe bombs are made each year, and thousands of pipe bomb threats are called into local police and FBI authorities across the country. Many are false alarms, but those that are not can be deadly.

Dismantling a pipe bomb is tricky and serious business, and missteps during the dismantling process can produce catastrophic results. Law enforcement authorities ideally would like to preserve all evidence related to pipe bomb attacks, but the main focus of responders is the safety of the public and current pipe bomb render-safe techniques often limit the amount of evidence that can be collected. Not so with SAPBER (say-ber).

S&T says that pipe bombs can be constructed from many different pipe materials, and filled with many different explosive materials. Making it even more challenging, they can also be constructed with shrapnel on the outside. SAPBER is designed to carefully disassemble the pipe bomb without disturbing the deadly explosive materials inside. Once the pipe bomb is dismantled, the filler explosive materials can then be emptied, and both materials and the pipe itself can be preserved as evidence. The SAPBER system is able to use these special techniques on a wide variety of pipes including straight steel, galvanized steel, copper, and PVC plumbing plastic.

The prototype and its remote-control software were developed by RE2 Inc., of Pittsburgh, Pennsylvania. As an operator controls the device from a distance, SAPBER takes the pipe bomb from a bomb-disposal robot, disassembles it, empties the pipe, makes a video, and carefully preserves all of the evidence.

The 140-pound (64-kg) 2-wheeler is small enough to squeeze into a current bomb-squad truck while sharing space with a bomb-disposal robot. Once off the truck, SAPBER is towed into place by hand or by