A London man said police seeking a bicycle-riding flasher arrested him because he was carrying fliers for a nude bike ride.

David Dunstan, a professor of experimental physics at London University who described himself a naturist, said police arrested him while hunting a cyclist who exposed himself to schoolgirls and officers seized legal nudist photographs and memorabilia from his home, The Daily Telegraph reported Monday.

Dunstan, who said he was arrested in December only because he was carrying fliers for a nudist bike ride in which he had participated two weeks earlier, told the High Court Monday his arrest was the result of "institutional prejudice" against naturists.

He said the Independent Police Complaints Commission, which cleared officers of any wrongdoing in the case, operated under the false conception he was accusing police of homophobia, instead of prejudice against naturists.

However, the High Court ruled Dunstan did not have sufficient evidence to contest the IPCC's ruling and ordered him to pay $240 toward legal costs for the police department.