The decision to give a warning to Maier was unanimous, a spokesman said, adding that the parliamentarian from Saxony had officially apologized for his comment targeting Noah Becker, the son of retired German tennis star Boris Becker.
A tweet posted from Maier's account at the beginning of January referred to an interview with the younger Becker, who had an Afro-American grandfather, in which he complained about being the "eternal son" of a famous father and said he had been attacked in the German capital because of his skin color.
"It seems the little half-negro simply got too little attention — that's the only explanation for his behavior," the tweet from Maier's account said. The posting was later deleted, and Maier claimed that a member of his staff had written and published the message.
His remarks forced the regional court in Dresden, where he presided as a judge for almost 20 years, to accuse him of "damaging the reputation of the judiciary in general and the Dresden Regional Court in particular."