Malak al-Khatib, arrested last month, is one of only a rare few female Palestinian minors who have ever faced arrest and sentencing by Israeli authorities.
"A 14-year-old girl won't pose any threat to soldiers' lives," said her father, Ali al-Khatib. "They are well equipped and well trained so what kind of threat could she have posed to them?"
Having spent four weeks in detention, al-Khatib has another four left weeks left at a central Israeli prison for women.
Out of a total of more than 5,500 Palestinians held by Israel, about 150 are minors, the vast majority of them male, according to official figures from November, provided by Israeli human rights group B'Tselem.
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Malak al-Khatib is among a handful of female minors ever held by Israel. Palestinian officials say she is the youngest girl ever detained and sentenced by Israel, a claim Israeli officials and rights groups said they were not able to confirm.
Israel was hit by a wave of riots by Palestinians in east Jerusalem last year, following the killing of a 16-year-old Palestinian boy by Jewish extremists in revenge for the abduction and murder of three Israeli teens.
Up to 1,000 protesters were arrested, many of them for stone-throwing. Israeli police said many of those arrested were minors. Some of them, schoolbags strapped to their backs, hurled stones at security forces on their way to or from school.
Stones and small rocks have become an iconic weapon in the West Bank. In the past six years, more than half of all arrests of Palestinian youth have been over stone-throwing.