Security service fears it might have to reveal operational methods if the case ends up in court.
Shalom Domrani arrested on suspicion of several cases of extortion along with six other purported members of his organization.
None hurt in blast; police suspect the car was detonated by criminals as a message.
Hassan A-Turabi, 22, was arrested in January for possession of a Molotov cocktail and weapons. He was released from jail three weeks ago upon being hospitalized for the pre-existing disease.
Supporters of secular candidate Eli Cohen say they have collected further evidence of fraud, including defaced voting slips
Driver says he was hit by another car and lost control: Several hundred mourners attended Tzipora Tzror's funeral in the evening.
Dismissal, rather than resignation, of former Jerusalem District police chief charged with assaulting female subordinates is meant to send broad message.
Policing, prosecution and debt collection are just a few of the state tasks increasingly handled by private firms, according to new report by Association for Civil Rights in Israel.
Nava Chen Ashraf, who was stabbed to death on Tuesday, twice filed police complaints that her ex-boyfriend was harassing and threatening her.
Deceased, who was a hairstylist, filed two complaints with the police this month, claiming that the suspect was harassing her and had even threatened her.