Nadezhdin's former campaign manager, Daria Heikinen, was detained in St. Petersburg.

Daria herself reported this on her Telegram channel. The reason was her refusal to provide a throat swab for DNA testing, according to the Libertarian Party of Russia team.

Daria was taken to the 42nd police station in the Krasnoselsky district of the city. However, she was released without a report after writing a statement.

Daria Heikinen — former head of the St. Petersburg headquarters Boris Nadezhdin. In June 2024, the Ministry of Justice included her in the register of “foreign agents”.

A year ago, Daria was taken to the same police station and then arrested for eight days for displaying prohibited symbols. The charges stemmed from a post featuring photos of Alexei Navalny.

In February 2026, Heikkinen announced the launch of her own public reception office. She invited people to address questions related to state-society relations, violations of citizens' rights, and conflicts with the authorities.