BERLIN — A Moroccan woman who took a piece of her dead husband’s intestine on a flight to their home in Austria was carrying the sample because she suspected that he had been poisoned and she wanted European doctors to examine it, her lawyer said on Tuesday.

The woman, 35, who has not been publicly identified, packed the four-inch piece in her checked baggage on a flight to the southern Austrian city of Graz, where she and her husband, 40, had been living for eight years, said the lawyer, Anton Karner.

Mr. Karner said his client had been acting on the advice of a doctor in Marrakesh who shared her suspicion that her husband had been poisoned at a meal the couple ate while visiting his relatives.

The Moroccan doctor extracted the piece of intestine, Mr. Karner said, and apparently helped pack it in formaldehyde and in thick plastic containers.