Judges in Moscow have formally approved the arrest of a former Russian banker accused of ordering the murder of the deputy governor of the country’s central bank. Alexei Frenkel is expected to be formally charged when he reappears in court on Wednesday. Police first took the 35-year-old into custody on Thursday. His lawyer, Igor Trunov, says no evidence has been presented. He also said he had not been able to see his client since a court appearance on Friday, and he is investigating claims Frenkel has been beaten in custody.