The current law is here: http://www.legislation.gov.uk/ukpga/2003/42/contents


The original text of the 1956 Act (the previous most general relevant statute) is here http://www.legislation.gov.uk/ukpga/Eliz2/4-5/69/contents/enacted

but as you can see from the schedule of repeals in the 2003 Act there were many other statutes that did fiddle about (see what I did there?) with the UK law of sexual offences, created over a great span of time but repealed in 2003.

There was also a fair bit of common law still relevant in the area during Savile's heyday.