Human Rights Watch says Israel has not shown it will conduct objective probe . Jerusalem ( CNN ) -- An international human rights organization on Sunday faulted Israel 's investigation into alleged war crimes last year in Gaza . Group also faults Hamas report on Gaza conflict , which it is still reviewing . Comment: About 1,400 Palestinians and 13 Israelis were killed during the Israeli incursion .
Human Rights Watch says Israel has not shown it will conduct objective probe . Group also faults Hamas report on Gaza conflict , which it is still reviewing . Comment: About 1,400 Palestinians and 13 Israelis were killed during the Israeli incursion .