The law forbids knowingly making false and defamatory statements that could lead to persecution of the accused person. So for example, you can't accuse someone

The law forbids knowingly making false and defamatory statements that could lead to persecution of the accused person. So for example, you can't accuse someone of being a rapist, for example, if you know that the accusation is not true. Similarly, you can't accuse a politician of being corrupt just because you don't like them if you don't have any reason to believe that your accusation is true. But it's absolutely allowed to publically insult a politician. And you also have the right to call a politician corrupt if you have a reason to believe that they are. For example, I know that calling our former finance minister a corrupt self-serving asshole is not going to get me into trouble because there have been multiple news reports about him taking bribes. I think for Americans it's just hard to believe that we don't protect made up lies as "free speech" around here.