The StB ran a codenamed operation, 'Akce Dědek,' using a helicopter overflight and motorcycle noise to disrupt Jan Patočka's 16 March 1977 funeral

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Per historian Petr Blažek, who edited the 2017 documentary edition of the StB's own files on Jan Patočka, the surviving StB record documents specific measures taken around Patočka's funeral under the codename "Akce Dědek" ["Operation Old Man"]. These included a low helicopter overflight of the cemetery — "one of two Soviet helicopters the Interior Ministry had recently bought, mainly for traffic surveillance" — and speedway motorcyclists from the Interior Ministry's own club, Red Star, revving engines at the Markéta stadium next door. Per Blažek, the engine noise drowned out even the priest's own graveside remarks. The file itself survives only as a final report plus surveillance and agent records; the operational staff's own planning minutes could not be located.

This adds a specific, documented state mechanism to the vault's existing record of the crackdown following Patočka's death — not general suppression, but a named, funded, hardware-equipped operation aimed at one funeral.