The Knesset Ethics Committee has on several occasions banned Arab MKs that the committee felt were acting outside acceptable norms. In 2016, Hanin Zoabi and Jamal Zahalka were banned from plenary sessions for four months and Basel Ghattas for two months after they had visited families of Palestinian attackers killed by Israeli security forces. Ghattas was again banned for six months in 2017 over charges of having smuggled cell phones to Palestinian prisoners and Zoabi was banned for a week for having called IDF soldiers "murderers."