Government (in my country we use a parliamentary system where laws get proposed/changed/...), courts.
For example in my country it is not legal to agitate to overthrow the political system, to form a new Nazi party, to use Nazi symbols as a political party, to organize a storm of the parliament, etc.
There are also strict laws to protect the privacy of people, incl. persons who are suspects of crimes. It's for example not allowed, without court order, to openly publish personal data (fotos, fullnames) of suspects and to search for those. Even the police can't do that without permission.
Yet so-called "hate speech" moderation on sites like Reddit tends to be a lot stricter than the law, often going as far as removing facts that might offend some group.
Government (in my country we use a parliamentary system where laws get proposed/changed/...), courts.
For example in my country it is not legal to agitate to overthrow the political system, to form a new Nazi party, to use Nazi symbols as a political party, to organize a storm of the parliament, etc.
There are also strict laws to protect the privacy of people, incl. persons who are suspects of crimes. It's for example not allowed, without court order, to openly publish personal data (fotos, fullnames) of suspects and to search for those. Even the police can't do that without permission.