He holds the position in acting capacity ever since the illegal and unrecognized Russian annexation of Donetsk, Kherson, Luhansk and Zaporizhzhia oblasts in 2022.

Pasechnik's father, Ivan Sergeyevich, worked in Soviet law enforcement, for the OBKhSS, for 26 years.

[7][4] In March 2007 SBU Lieutenant Colonel Pasechnik received from the Ukrainian President Viktor Yushchenko a medal For Military Service to Ukraine, "for showing integrity and professionalism in the line of duty" during the aforementioned operation.

[4] As part of that role, he oversaw the "notorious" prisons and isolation cells in the LPR, in which, many media have reported, torture of people with anti-separatist views took place.

[8][9] Three days later, a government statement declared that Plotnitsky had resigned "for health reasons (due to) multiple war wounds (and) the effects of blast injuries, (which) took their toll.

"[14] While meeting people living in territory controlled by LPR in the summer of 2019, Pasechnik stated: "It does not mean, that we will return back into Ukraine.