In 1854, Fox Talbot applied to the Privy Council for an extension of his patent and Laroche was instrumental in fomenting opposition. Laroche was a professional photographer who has been claimed as a collaborator of Archer. He orchestrated the Photographic Society's public opposition to an extension and entered his own formal objection with the Privy Council. As a deliberate "casus belli", he advertised his photographic services in "The Times", stating that he used "the new process on paper", the collodion process. Laroche's solicitor was Peter Fry, an amateur photographer who had been active against the original patent.