Comparative law notes
"Calúnia", as set out in section 138 of the Brazilian Penal Code, is the offense of imputing a crime to someone (whether verbally or in writing) knowing that this is not true.
There are multiple definitions - click on the translation that matches your context.
calúnia
substantivo
partial
criminal defamation
noun
Definitions of criminal defamation
the crime of damaging the reputation of a person or a group of people by saying (=criminal slander) or publishing (=criminal libel) bad things about them that are not true
He is facing nine charges of criminal defamation after publishing allegations about the government's record on human rights.