The opposition believes that the investigation into the Boris Nemtsov murder case is going too slowly.
"I think the investigation has deadlocked. Despite the clear chain of suspects, the investigators cannot find and detain the masterminds," Ilya Yashin, Nemtsov's colleague in the party RPR-PARNAS and the movement Solidarnost, told Interfax on Monday.
Yashin said this may be due to "political obstacles."
"This means that the investigation will be dragged out," the opposition activist said.
Yashin said the law enforcement agencies "cannot conduct full-fledged investigative actions into the suspects, who are on the territory of Chechnya."
Opposition politician Boris Nemtsov was killed in central Moscow not far from the Kremlin in the late hours of February 27. Five defendants (Zaur Dadayev, Anzor Gubashev, Khamzat Bakhayev, Tamerlan Eskerkhanov and Shadid Gubashev) have been arrested.
A source in the law enforcement authorities told Interfax that Zaur Dadayev, a former deputy commander of the Chechen battalion North, might have perpetrated the murder.
The Moscow City Court will look into the legality of the arrest of the five suspects on April 1.
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