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Israel has refused to confirm or deny any involvement in the January killing of Mahmoud Mabhouh, a Hamas commander, in a Dubai hotel.

But Dahi Khalfan Tamim, the Emirati police chief in charge of the investigation, is convinced Mossad, the Israeli spy agency, sent a squad to Dubai to assassinate Mabhouh.

Al Jazeera's Dan Nolan has this exclusive interview with the man fast-becoming a hero across the Arab world for holding Israel to account.

Source: Al Jazeera