Police found their plans thwarted when they occupied Csókakő, Fejér county on Saturday to prevent an inauguration ceremony planned by the far-right Új Magyar Gárda.
The group had expected such a response and instead held its ceremony in Dunaföldvár.
Csókakő mayor György F rész told Népszabadság that he was informed around 11 p.m. Friday night that a huge number of police officers were arriving in the village. Police had not informed the mayor of their plans.
Police declared the area an operational zone and only allowed those into the village who could prove that they were local residents. Police left on Saturday afternoon.
The Új Magyar Gárda held its ceremony on private land, a former shooting range near Dunaföldvár, Tolna county.
Police showed up there and demanded the identity papers of about 50 people.
Jobbik president Gábor Vona wrote on his blog that police had committed an embarrassing, tragicomic mistake, perhaps the biggest screw-up by police in the past 20 years, adding that in a normal country the interior minister would lose his job.