A blatant coursework question here. I can't decide whether I'm amused or vaguely insulted by the last sentence. But anyway, try:
Hansard, allowed by Pepper v Hart.
I'm not giving you the citation of the case as then you gain a modicum of knowledge by doing that research yourself. A brief google of Hansard will help you too.
Also, one can gauge Parliamentary intention by looking at the problems or lacunae with the old laws and what the older cases say. From that, common sense (usually, not always) provides an answer.
Alternatively, White Papers produced by Government Bodies set out objectives and issues to be tackled.
Finally, a brief mention of the Interpretation Act (research the act yourself) may be worthwhile.
And if you're in a real difficult situation...pick up a book and read some cases for yourself. I've decided I don't fancy giving you legal authority for my answer.