[2] Founder of RIO-Center, now Institute of Contemporary Development (INSOR), Russian liberal think tank chaired by President Dmitry Medvedev.

On 25 July 2000, Leonid Reiman issued the order No 130 "Concerning the introduction of technical means ensuring investigative activity (SORM) in phone, mobile, wireless communication and radio paging networks" stating that the FSB was no longer required to provide telecommunications and Internet companies documentation on targets of interest prior to accessing information.

[13] During the early 2004 tax dispute in Russia by Gossvyaznadzor (Russian: Госсвязьнадзор) about VimpelCom OJSC and its wholly owned subsidiary Impulse Design Bureau OJSC, Leonid Reiman, as the Deputy Minister of Transport and Communications, stated that it is unclear how taxes are paid by the companies but requested that the two should merge.

[16] Alfa Group, which has a significant share in Vimpel, was involved in a dispute over ownership of Leonid Rozhetskin's LV Finance former 25% stake in MegaFon with IPOC International Growth Fund during VimpelCom's tax issue with the Russian government.

[19][20][21] During a Bermuda government supported audit of IPOC International Growth Fund Ltd's KPMG investigation in 2005, the top official has been named in a number of legal actions as Leonid Reiman, Russia's telecommunications minister.