A Russian activist used a drone to extract his data from his building when the police came to pick them up.
Sergey Boyko said he sent hard drives to a friend by drone when police knocked on his door at 10:00 am local time to prevent them from recovering the data.
The search was part of a nationwide crackdown against the opposition.
About 200 raids have been carried out in recent days after the ruling party suffered heavy losses in local elections in Moscow.
A video taken on YouTube (in Russian) by a companion shows Mr. Boyko, who lives in the city of Novosibirsk, Siberia, releasing a drone from his apartment in a large building, while the police are waiting to be left behind enter.
Mr. Boyko heads the opposition leader's local movement, Alexei Navalny, who campaigned for voters to triumph over unified Russia party candidates by using a tactical vote in the local elections. Sunday.
Activists say raids are a form of revenge by the authorities in the face of setbacks.
& # 39; evacuation & # 39;
Mr. Boyko's companion stated that the couple was awakened by loud beating at the door to find men in plain clothes and masks demanding to be let in.
The drone was loaded with various hard drives, SSDs and Flash drives containing "very important" information that he did not want to fall into the hands of the police, according to the activist.
"Done, the evacuation was done, the drone reached its destination," he said at one point.
The video then shows what appears to be an attempt to break Mr. Boyko's door after he refused to let the police in before obtaining proof of his authority.
He finally let them follow the negotiations through the intermediary of a lawyer.
Thursday's searches in more than 40 Russian cities were conducted as part of a criminal investigation into alleged money-laundering cases related to the Navalny campaign.
Opposition volunteers were taken for interrogation. Computers and phones were confiscated and some activists' personal bank accounts were frozen.
& # 39; Humiliation & # 39;
The headquarters of the organization in Novosibirsk was also raided.
Mr. Navalny and his supporters believe that the allegation of money laundering is ridiculous and that the funds involved are donations from the public.
The case was launched following a series of protests held this summer against the decision of the authorities to ban leading opposition candidates from the Moscow City Council elections.
The day after the success of Mr. Boyko's data evacuation, his apartment was again raided, which activists have described as revenge for the use of the drone.
"This time it was heavy, with everything confiscated – yesterday, according to Sergey Boyko, the investigators were" openly heartless, "said Navalny activist Leonid Volkov on Twitter. have been smarting from "humiliation" (link in Russian).