In judicial practice, the supervision of non-custodial personnel has always been a challenge. How can we ensure that they are able to exercise effective control without losing their freedom? With its innovative technology, Thinkrace has launched the non-custodial personnel positioning and control platform, a 4G card electronic footer system that integrates waterproof, anti-disassembly and GPS positioning, providing an efficient and safe solution for the supervision of non-custodial personnel.