Preliminary investigation into the Ali and Youssef Jarrah espionage case revealed that both men have been working for the Israeli Mossad since 1983.
According to the Lebanese Broadcasting Corporation (LBC) Youssef Jarrah denied reports that he had previously visited the Kfar Soussa neighborhood in Damascus where Hizbullah military commander Imad Mughniyeh was assassinated.
However, Jarrah admitted to having visited Israel over 12 times.
The Jarrahs were ordered by Israel to gather information about Palestinian and Syrian positions in Lebanon up till 2005. They both photographed and monitored Syrian military positions inside Syria, some on the Damascus-Deraa highway.
They also recorded the plate numbers of trucks coming into Lebanon from Syria, fearing they would carry arms to Hizbullah.
Ali Jarrah received communications equipment and an advanced camera from the Israelis that he placed inside his vehicle and cellular phone. He has also received over $300,000 through a third person who would place the items at an agreed spot and Jarrah would later pick up.
The last operation of this kind took place in 2007 at the southern village of Marwaheen during which Ali Jarrah received equipment from the Israelis in return for films.