The 120-member Knesset voted late yesterday 35 to 15 in favour of the bill, which was initiated by a far-right politician and approved by the cabinet in June, a parliament spokesman said.
    
The law gives judges the power to convict murderers under a new category of "extraordinarily severe circumstances" which would prevent the government from releasing them in any future deals.
    
Israel freed 78 Palestinian prisoners during failed US-backed peace talks between July 2013 and April, including many who had been convicted for murdering Israeli civilians.
    
The Jewish state also famously released 1,027 Palestinian prisoners in 2011 in exchange for the freedom of an Israeli soldier held for five years by the Palestinian militant group Hamas.
    
The releases angered hardliners such as Ayelet Shaked of the far-right Jewish Home party who initiated the new law earlier this year.
    
"The mass release of terrorists through diplomatic deals makes a mockery of the Israeli public as does shortening the prison terms of criminal murderers," she said in a statement in June.
    
But left-leaning politicians have said the law would tie Israel's hands in future talks, with Zehava Gal-On of the Meretz party accusing Prime Minister Benjamin Netanyahu of "capitulating to the extreme right and supporting a demagogic law."

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