P310 4-Tel 310 Sat 10 Dec C4 22:23:03   A WEEK IN POLITICS  Tonight, 19.00-20.00   Vincent Hanna and Andrew PREVIEW Rawnsley take another informed but irreverent look at the week's political develo—lfnts. Tonight's prograllf includes an interview with Social Security Secretary, Peter Lilley, about the government's future prospects. Plus a report from Northern Ireland on how Sinn Fein's demands for the RUC to be disbanded are likely to be met. The programme also features a report on the forthcoming Dudley West bye-election.