The Russia-controlled supreme court of Crimea questioned secret witness Serhiy Dorofeyev in the case of "Ukrainian saboteur" Yevhen Panov on 26 April, according to an LB.ua correspondent.
The prosecution introduced him as a former career serviceman, a colonel of the Ukrainian Defence Ministry's Main Intelligence Directorate.
In particular, Dorofeyev testified that he had been in Kyiv about a month or two before Panov's detention and heard from his colleague in a private conversation about an act of sabotage being plotted and the names of Yevhen Panov and Oleksiy Sandul.
Apart from him, the court also questioned an explosive expert, two assistants from a military shop in Sevastopol and a representative of a military unit in Dzhankoy.
"The military prosecutor asked hypothetical questions on what could have happened and what damage could have been caused had the saboteurs penetrated the military unit," Panov's lawyer Serhiy Lehostov said.
The next court session is scheduled for 10 a.m. on 27 April.
On 10 August 2016, the Russian FSB said it had prevented terrorist acts in occupied Crimea and detained one of the alleged saboteurs, Ukrainian national Yevhen Panov, a resident of Zaporizhzhya Region. He used to work as a bus driver at the Zaporizhzhya nuclear plant.
Panov did not plead guilty.
On 17 April, a court extended his arrest by another half year.