At least 1,000 Palestinians were freed from prison in 2011, as part of an exchange for Israeli soldier Gilad Shalit.
But under Israeli military law they can be sent back to jail based on evidence that they are under no legal obligation to reveal.
Palestinian lawyers are now fighting the law in the Supreme Court.
Al Jazeera’s Nicole Johnston reports from Qalqilya in the occupied West Bank.
Source: Al Jazeera