MOSCOW, April 1 /TASS/. Alexander Reimer, the former director of the Russian Federal Penitentiary Service (FSIN) arrested on charges of using fraud schemes to steal 2.7 billion rubles ($51.4 million) when purchasing electronic bracelets for court prisoners is giving testimony, Vladimir Markin, a spokesperson for the Russian Investigation Committee, said in an interview with the Vesti news program on Rossiya 1 TV channel.

Court arrested another two suspects in connection with the electronic bracelets fraud a day earlier on Tuesday. They include Viktor Opredelyonov, director of FSIN’s center for IT support and communications; and entrepreneur Nikolay Martynov, the general director of a commercial organization.

Reimer’s former deputy Nikolay Krivolapov has been placed under house arrest.

According to Markin, three of the suspects have agreed to give testimony. The fourth has refused to explain anything referring to Article 51 of the Russian Constitution that allows him not to testify against himself.

"In the interests of investigation I cannot tell you who exactly has refused to testify. But it’s definitely not Reimer," Markin told Rossiya 1.

In 2010-2012, the defendants, according to investigators, used fraud schemes to steal 2.7 billion rubles (about $51.4 million) worth of budget money which the Federal Penitentiary Service received for purchasing electronic bracelets for court inmates.

Alexander Reimer has pleaded not guilty.