German authorities have dropped charges against a man for training his dog to give a raised-arm Hitler salute.
Adolf performed his trick in front of police
A spokesman for the Berlin justice department said it was not clear whether the 54-year-old man had broken the law by doing so.
The dog's owner was questioned by police after members of the public in the Berlin suburb of Lichtenrade complained that they had seen the two of them saluting together.
The dog, a German shepherd crossbreed named Adolf, after the German dictator, is also said to have performed the trick in front of two policemen.
Carola Ruff, of a Berlin animal welfare group, said there was nothing strange about Adolf's behaviour.
"Raising a paw is what they're born to do," she told Berliner Kurier newspaper, adding that a dog could be trained to do almost anything its master wanted.
Nazi symbols and gestures, including words and actions which can be interpreted as condoning Nazism, are illegal in Germany.
The man, named only as Roland T, was also accused of wearing a T-shirt with a picture of Hitler and shouting Nazi slogans.
Prosecutors said he still faces charges for using Nazi symbols.
Pictures in the German newspaper Bild showed the man with a Hitler-style toothbrush moustache.