[9][10] Tsvetanov was elected as a permanent representative in the Management Board of Europol's Joint Group for Parliamentary Control on September 25, 2018.

[12] Tsvetanov's reputation faced scrutiny in 2011 when media reports surfaced regarding his ownership of multiple expensive properties in the capital city.

[14] However, the tax case was reopened in June 2013 due to the emergence of new evidence suggesting that two of the apartments might have been gifted to him in exchange for a lucrative government contract.

In a television interview, former agriculture minister Miroslav Naydenov confirmed the charges, describing instances when the wiretapping occurred.

[16] Tsvetanov has denied the claims by the general prosecutor, even though three members of the wiretapping unit at the Interior Ministry have independently confirmed them.

The charges were substantiated by former agriculture minister Miroslav Naydenov in a television interview, where he recounted specific instances of wiretapping.

"The sum was allegedly embezzled to the benefit of another person, Orlin Todorov, former head of the anti-mafia unit in Veliko Tarnovo."

[22] In 2019, Bulgarian media exposed an "Apartment Gate" scandal involving alleged corruption deals implicating government officials, including Tsvetanov.

According to the reports, Tsvetanov was accused of accepting a luxury apartment in a prestigious building at a significantly reduced price, amounting to less than one-third of its market value.

An inquiry conducted by the office concluded that there was insufficient evidence to establish Tsvetanov's involvement in corruption or other criminal activities.

He was compelled to resign from his leadership positions by GERB leader Boyko Borisov and was subsequently demoted to an ordinary party member.