Section 127 of the Communications Act makes it an offence to send offensive, indecent, obscene, or menacing messages through a public electronic communications network. This is often applied in cases of cyberbullying, hate speech, and online abuse.

Source

Other Legislation from United Kingdom

Act on Cybercrime/Online Intellectual Property Protection

Cooperation and International Efforts

Criminal Code/Law Enforcement

Cybersecurity and Critical Infrastructure Protection

Data Protection and Privacy

Illegal Gambling

Online Hate Speech and Illegal Content