 Russian colonel supplied wrong radars to protect Crimean Bridge. Colonel Sergei Volkov, the head of the Russian Guards' Maritime Department, was given a six-year prison sentence by a military court in Russia for using inadequate radars to shield the invaders' Crimean Bridge from Ukrainian drone attacks. Media Zona, a Russian outlet, reported this. Volkov faced serious repercussions after being found guilty of abusing his position of authority. The news of his arrest and detention spread by the end of March 2023. The publication claimed that the National Guard and the Rostov-on-Don Research Institute of Radio Communications have signed a 395.5 million rubles contract for the supply of two radar systems to counter UAVs, which could be used, among other things, to defend the Crimean Bridge. Volkov pleaded not guilty. According to investigators, Volkov implemented systems that, as it turned out, during the execution of the contract, did not allow for successful completion of missions to combat unmanned vehicles. During the verdict, the judge clarified that the system that Volkov bought had been serviceable but not suitable for protection from drones. Media Zona said.