His lawyer informed TASS about this.

In 2021, the court forbade him to go on walks recommended by doctors after the fourth heart attack.

Mitko - doctor of technical sciences, professor, former head of the hydroacoustics department of the Naval Academy.

He was a member of the editorial board of the scientific magazine "Technical Acoustics" and the editorial board of the "Shipbuilding" publishing house, the field of his scientific interests was applied hydrophysics.

In the spring of 2021, he was detained by the FSB.

According to the version of the investigation, for four years he cooperated with the Chinese special services and collected data on the methods and methods of detecting submarines.

The scientist categorically denied guilt.

Since 2016, the professor regularly visited the Dalian Ocean University in China as a visiting professor.

According to the investigation, one of the documents he took with him to the lectures contained a state secret.

The scientist pleaded not guilty, pointing out that all the data he allegedly passed on to China was in the public domain.

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