Law was unimpressed by his university education and desirous of a military career, but his father intended him for public life and he submitted to this, compensating himself with the ambition of becoming a military statesman.
Law was not returned for Gatton, allegedly because of his opposition politics. When he came in for Mitchell early in 1813 on the interest of Lord Falmouth, prompted by Sidmouth acting through Lord de Dunstanville, the latter thought him ‘certainly a clever young man, perhaps a little conscious that he is so’.
Law hoped for an advantageous peace settlement, 25 May 1815, but having visited Castlereagh at Vienna during the Congress, he came back dissatisfied with the developments there and refused to accept a place on the commission to effect the transfer of Genoa to Sardinia. Castlereagh’s half-brother Lord Stewart wrote, 21 June 1815: ‘I have no hopes of Law ever coalescing in politics. His mind is from his acquirements and undoubted ability presuming, and he will never serve and is not eminent enough to command.’
Law was cried down, 9 Apr. 1816, when he was trying to defend Princess Charlotte’s establishment bill—he seems to have got his facts wrong. He went on to vote with opposition, 25 Apr., for the reduction of public expenditure. On 30 Apr. he defended his father against Lord Cochrane’s allegations of judicial partiality and accused the latter of ‘vilifying and degrading the public justice’ by his allegations. For this he was rebuked by Horner, whose motion on the Bank of England he nevertheless supported next day. On 6 May he voted for Tierney’s motion on the civil list, next day for Althorp’s motion for a committee on public offices and on 13 May for Milton’s motion criticizing the undue interference of the military in suppressing public meetings. He spoke on foreign affairs, 28 May, describing Austria’s internal difficulties. On 31 May he was in the minority on the aliens bill and on 4 June on the public revenues consolidation bill; he further appeared in the opposition majority on the latter on 17 June. On 20 June he was in the minority against the Irish vice-treasurership. No further minority vote is known: he seconded the vote of thanks to Lord Exmouth for his attack on Algiers, 3 Feb. 1817, voted with ministers on 7 and 17 Feb., and defended the suspension of habeas corpus, 25 Feb. On the same day he defended the maintenance of the junior lords of the Admiralty and advised government not to concede the superfluousness of any existing public post. On the subject of the seditious meetings bill on 3 Mar. he suggested that magistrates must be able to regulate public meetings, so as to prevent combinations to evade their vigilance. The same day he objected to a petition for parliamentary reform. He again voted for the suspension of habeas corpus, 23 June 1817, and against opposition motions critical of its consequences, 10, 11 Feb. and 5 Mar. 1818. On 11 Mar. he defended the indemnity bill, clashing with Burdett, Romilly and Brougham: he felt that those who prevented offences should be protected and not those who committed them.
Law, who would have had to find another seat, did not seek re-election in 1818: his wife’s illness had taken him to Italy from April until June and his father’s health was declining. Lord Ellenborough thought a new seat would be a bad investment for his son, in view of the King’s ‘precarious life’.
