About LDS Established in 2004, Laser Detect Systems (LDS) is a world-leading developer of stand-off laser-based trace detection technology, based on advanced laser spectrometry. Utilizing this technology, LDS has commercialized patented, ground-breaking systems for homeland security, law enforcement, military and environmental safety. These systems enable the stand-off, real-time sensing and trace detection of a variety of materials which have a distinct spectral signature without the need for sampling. These include explosives, PETN, narcotics, chemicals, biological substances, and other hazardous materials, in liquid form