The most precious child16+

The OSA (Special Investigation Agency) are true masters of their craft. The police turn to the agency’s experts when they need to solve an extremely complex case. The agency’s main strengths are its state-of-the-art technology, highly specialised professionals and ability to work as a team. This ‘dream team’ is led by the eminent scientist Olga Serhiivna Kosach. The OSA comprises specialists from a wide range of fields: ballistics experts, laboratory technicians, programmers, operatives and detectives. Follow their adventures in the ‘The Trace’ series!