The Georgian prosecutor's office has summoned former president Mikheil Saakashvili for questioning about the poisoning death of a former prime minister and other cases amid a wave of charges and verdicts against former officials.

He will also be quizzed on alleged government mis-spending, a raid on a Tbilisi TV station and a pardon for four murder convicts during his two terms in office, prosecutor Koka Katsitadze said yesterday. Since Saakashvili's party lost power in 2012, dozens of former officials have been charged or sentenced in cases his allies have branded a witch-hunt.