The brother of Algeria's deposed president went on trial on Monday accused of plotting against the military, AFP news agency quotes Algerian television as saying.
Two former intelligence chiefs and a political party head are also on trial with him at a military court in Blida, south of Algiers, according to private television channels Ennahar and El Bilad.
Said Bouteflika faces allegations of "undermining the authority of the army" and "conspiring" against the state.
He is accused by former defence minister Khaled Nezzar of considering declaring a state of emergency and firing the army chief in April when protests were mounting against Abdelaziz Bouteflika, his brother.
The president was deposed in April after weeks of protest against him and the powerful people around him.
Investigations started shortly afterwards and a wave of arrests of high-profile figures followed.
Elections have been called for 12 December.