Lefter Koca was arrested by order of the "Special Anti-Corruption Structure" (SPAK) on 14 December 2021, accused of involvement in the incinerator scandal.

[4] According to the indictment, during his tenure as Minister of Environment, he was bribed with about 5 million euros, from businessmen Klodian Zoto (Integrated Technology Service) and Stela Gugallja (Albtek Energy) in order to circumvent the legal procedures to award contracts for the construction and operation of incinerators in Fier and Elbasan, directly affecting the interests of the state.

[5] The "Court Against Organized Crime and Corruption" found him guilty of "corruption" "abuse of duty" and "money laundering" in connection with the incinerator in Fier and sentenced him to 10 year in prison.

[6] For the incinerator of Elbasan has found quilty of "passive corruption" and "money laundering" and sentenced him to 5 years and 8 months.

[7] The case is in the "Special Appeal Court against Crime and Corruption".