During his second term as Home Secretary (1828–30) Peel established the Metropolitan Police (and gave his name to the nicknames bobby and peeler). As leader of the new Conservative Party he affirmed his belief in moderate electoral reform in the Tamworth Manifesto (1834). His repeal of the Corn Laws in 1846, however, split the Conservatives and forced his resignation. In the last years of his career he came to support the Whig policies of free trade.