It turns out that they want to prosecute journalists, playwrights, theater directors, movie theater managers, etc, etc, etc, etc if what they say or the product they allow to be viewed can cause offense.
Like in the case of Count Dankula, no one has to complain in order for the police to arrest and charge you.
JK Rowling's latest book, which the left went mental over, despite not reading the book, would be grounds to prosecute her. People got offended, therefore she is guilty.
The law DOES NOT (like many UK laws) have the reasonableness test. This is why so many dogs get killed by the government. Any dog that causes fear is to be killed. The "fearful" person doesn't have to have a reasonable fear of a specific dog. Even if it's an irrational phobia, the law demands that the accused dog be killed.
Welcome to the wonderful world of the UK's fucked up legal system.