 Usually, such strikes have been carried out by Israeli Air Force attack helicopters that fire guided missiles at the target, after the Shin Bet supplies intelligence for the target.The exact nature of said proof in focused foiling is controversial and classified, as it involves clandestine military intelligence oriented means and operational decisions made by intelligence officers and commanders rather than being a part of a published justice system executed by lawyers and judges.The IDF says that targeted killings are only pursued to prevent future terrorism acts, not as revenge for past activities.