The Federal Expert Service (FES) has everything that can help solve the most convoluted crime. Not only high-ranking prosecutors, but also ordinary operatives can turn to it for help. The experimental laboratory is equipped with the latest technology, and each of its employees is a unique specialist in their field. Their task is to assist and guide the investigation by studying evidence and finding that crucial piece that will help identify the real culprit. Every day they work to ensure that no crime goes unpunished. In 39-minute mini-films, FES employees investigate complex cases, exposing the guilty parties.