Our focus is on multi-band, high powered, lightweight, portable, easy to use, Laser and LED Systems

TECH-LONG products are compact, practical Forensic Laser and LED Systems, used to detect latent fingerprints, sweat, urine, saliva, blood, and other biological traces during fluorescent examination.

As a company we continue to develop innovative and reliable products to meet the needs of those involved in criminal investigation.

It’s a constant challenge for agencies to stay ahead technologically as well as process the increasing volume of incoming digital devices, created by technology advances. Budgets and resources are shrinking simultaneously at high-tech crime units around the world, while the latest technologies are becoming more prevalent in criminal and terrorist activities.

In addition to the world-class products offered by TECH-LONG, we offer a full range of services to further assist their customers. The technically trained teams are able to solve tough applications and answer technical questions about the products. TECH-LONG is dedicated to adding value by combining superior technology with unparalleled support. Whilst also providing bespoke systems and OEM for partners worldwide.

The commitment to customer care and attention to detail means we are constantly looking to manufacture and supply the best equipment possible to assist customers in the never ending fight against crime. Please contact us to discuss your requirements and we will be happy to research any specific bespoke solutions.


The SARCS-LED (Sexual Assault Rapid Crime Scene- LED) is an LED light source designed in collaboration with UK law enforcement. The power and quality of the wavelength enable it to locate more human biological traces at the scene of a crime and enable better quality images to be taken.

Staffordshire University

Working in partnership with Tech-long, conducting several strands of research to improve the quality of forensic investigation at crime scenes, and the standard of service to victims of sexual assault.

DB-LED in Action

Identifying human body fluids at 445NM and 530NM