The Bulgarian Legion "Anti-Mafia" has sent a letter to EU and NATO Ambassadors in the country to inform them that General Stoimen Stoimenov, National Security Advisor of President, Rosen Plevneliev, has been employed by the Central Committee of the Communist Party during the Communist regime.

Recently, political scientist Anton Todorov showed in a broadcast of the Channel 3 TV documents proving Stoimenov's association with the Communist party.

In a report from 1989, General Dobri Dzhurov, Minister of Defense of the Communist government of Todor Zhivkov, had proposed to promote engineer Stoimen Stoimenov, instructor at the Social and National Security Department of the Central Committee of the Bulgarian Communist Party to Chief of the Political Unit of the Third Army.