It is reported by RIA Novosti.
According to him, the Human Rights Council has repeatedly advocated "a more careful attitude to the detention of the accused, those under investigation."
He noted that it is necessary to use more preventive measures such as house arrest and a written undertaking not to leave the country.
Earlier, Russian presidential spokesman Dmitry Peskov said that the Kremlin could not comment on the situation with the detention of scientist Dmitry Kolker, who died after being arrested on charges of treason: this is the prerogative of the court.
Before that, it became known about the arrest of Dmitry Kolker.
According to the Novosibirsk State University, he was engaged in the development of radiation sources for medical, environmental and special tasks.
On July 3, members of Kolker's family reported that they had received a telegram announcing his death.