If it's a recent case you might find it referred to on a local newspaper website. However newspapers often delete reports after a certain time, so as not to contravene the underlying principles of the Rehabilitation of Offenders Act. (Further, individuals have the right to require Google to remove search results if they link to pages about them which are now outdated).
While court records are theoretically in the public domain, the details of most cases aren't available online unless the case was referred to the Court of Appeal.