One result of Roberts’ successful advocacy is perhaps to be seen in the introduction, during the Parliamentary session of 1844, of a Bill “for enlarging the powers of justices in determining complaints between masters, servants, and artificers,” which the Government got referred to a committee, by which various extraordinary interpolations were made in what was at first a harmless measure.[314] Not only was any J.P. to be authorised to issue a warrant for the summary arrest of any workman complained of by his employer, but “any misbehaviour concerning such service or employment” was to be punished by two months’ imprisonment, at the discretion of a single justice. It is easy to see what a wide interpretation would have been given by many a justice of the peace to this vague phrase; and Roberts was not slow to point out the danger to his clients. Upon his incitement the delegate meeting of coal-miners at Sheffield set on foot a vigorous agitation against the Bill, which had already slipped through second reading and committee without a division. The Potters’ Union took the matter up with special vigour, and circulated draft petitions throughout the Midlands.[315] A friendly member, Thomas Slingsby Duncombe, obstructed its further progress, and got it postponed until after the Easter recess. Meanwhile petitions poured in upon the astonished House, amounting, it was said, to a total of two hundred, and representing two millions of workmen. When the Bill came on again all the Radicals and the “Young England” Tories were marshalled against it. Sir James Graham in vain protested that the Government meant nothing more than a consolidation of the existing law, and led into the lobby all his colleagues who were present, including Mr. Gladstone. But the combination on the other side of Duncombe, Wakley, Hume, and Ferrand, with Tories like Lord John Manners, and a few enlightened Whigs such as C. P. Villiers, settled the fate of this attempt on the part of the employers to sharpen the blunted weapon of the law against the hated Trade Unions.[316] The miners were less successful in their strikes than in their legal and political business. In 1844 their National Conference at Glasgow, representing 70,000 men, voted, by 28,042 to 23,357, in favour of striking against their grievances, and the Durham men, numbering some 30,000, engaged in that prolonged struggle with Lord Londonderry and their other employers for more equitable terms of hiring and payment, to which we have already alluded.[317] After many months’ embittered strife the strike failed disastrously; and the great Miners’ Association, whose proceedings form so important a feature of the _Northern Star_ for 1844 and 1845, gradually disappears from its pages, and in the general collapse of the coal trade in 1847-8 it came completely to an end.