In 2003, Erez was quizzed by police on suspicion of being paid by an Ashdod school despite never having worked there.
Uri Harkham bought house in mid-'90s after contributing $25,000 to ticket Olmert headed in 1993 mayoral campaign.
PM is suspected of furthering interests for associates of his close friend, attorney Uri Messer.
Should the tank suffer a direct hit, a toxic ammonia cloud could endanger anyone within a 5.5 kilometer radius.
Home Front chief lifted curbs on use of toxic ammonia tank, vulnerable to rocket fire during war.
Senior Israel Antiquities Authority archaeologist in charge of Ashkelon excavations owns quarter of excavations company shares.