Well Warwicks law school is well respected. Of course like any other University you need to acquire good results, otherwise no matter what the reputation of your university won't be able to help you. This might be helpful it was posted by lawgrad in the law section in a thread entitled 'Top 20 Universities for law a definitive list';
'The newspaper league tables are not very accurate at all with regards to the top unis for law. The most important perception is that held by the leading law firms in the country. Through interviews with most of the UK's leading law firms (and getting job offers from all of them), I can quite confidently say that a list of the top unis in England and Wales (i.e. the only ones that top firms actively recruit from) are as follows:
University College London
London School of Economics
King's College London
Of course, the individual rankings above are arguable, but generally these eleven traditional unis are quite recognised by the leading law firms and most legal academics to be the best unis for law. And seriously, their opinions are the only ones that count! I daresay if you go to any top law firm, and ask for a list of the lawyers who graduated from these eleven unis, they will make up at very least 80-90% of the lawyers in that firm.'
Why are you asking by the way?