The Mission Darkness BlockBox Lab XL offers the ultimate radio frequency (RF) shielding and hands-on accessibility for electronic device forensics investigations. The heavy-duty forensic analysis enclosure is designed specifically for investigating devices such as cell phones, tablets, laptops, and similar size electronics while remaining shielded from RF signals. The extra large interior dimensions make it easy for operators to comfortably analyze devices, as well as transfer devices in and out of faraday bags inside of the shielded chamber. Alternative uses relate to mobile device testing, since the product can be used to create an isolated and controlled environment. It is constructed with a durable aluminum frame with RF absorbent foam lining the inside walls, conductive gloves for both hands to operate and interrogate devices inside (including touch screens), patented Gen 2 RF-FilterVu transparent viewing window, two LED arrays, power strip with four universal power ports and four USB ports, and a dual-sided shielded filter with RJ45 ethernet and two USB ports for extracting data at high speeds.