On Catholic emancipation Peel's process of conversion was slower. He steadily fought the proposals for relief in the House of Commons as long as Lord Liverpool lived, and when Canning succeeded to the premiership (1827), he resigned rather than serve under a pro-Catholic chief. When the Tories came back to power under Wellington, in 1828, Peel resumed the Home Secretaryship, with the leadership of the House of Commons, a position for which he possessed incomparable qualifications. His second administration of the home department was distinguished by a series of radical improvements in the criminal laws. One law for the punishment of offenses against the person took the place of fifty-seven existing acts. In 1829 he replaced the ridiculous London watch with the police force which has served as a model for many other large cities. Many who speak familiarly of the blue-coated guardians of the peace as "Bobbies" and "Peelers" would be surprised to know that these sobriquets constitute a popular tribute to the name of Robert Peel, the creator of the model force. These legal and administrative reforms, beneficent as they were, were not great party questions like the two others which the Wellington government had to face, and gained so little credit in the facing. The Whigs, under John Russell, urged the demand for the relief of Protestant dissenters from their political disabilities by the repeal of the Test and Corporation Acts. Peel argued against the change, but it was carried, nevertheless, and the Tories accepted the measure with the best grace they could summon. Their resistance to Catholic emancipation cost them more dearly. O'Connell, master of all the arts of agitation, fanned the excitement in Ireland into flame. His Catholic Association made itself heard, and felt, and feared. In June, 1828, a member of the government standing for election for County Clare was soundly defeated by O'Connell himself, a man whom the anti- Catholic laws disqualified from sitting in Parliament. The government knew not which way to turn, and O'Connell, perceiving his advantage, lashed his followers to the verge of an insurrection. This was the question on which George III. had broken with William Pitt a generation before, and now it was only by the most vehement arguments, and even by threats of resignation, that the ministers could obtain his son's consent to the inevitable. In a speech of four hours' duration Peel explained the measures to the House of Commons, confessing that the necessity under which he acted "was the severest blow it had ever been his lot to experience." The speech was an admission of defeat, and an elaboration of the measures by which the government, in the hour of concession, proposed to limit the "dangerous power of the Roman Catholics." The bill became a law, and the Irish Catholic members began to sit in Parliament--with some of the disturbing consequences which no one foresaw better than Peel himself.