After emerging from the police station some four hours later, Naffaa told Ynet that he does not view Syria or its residents as his enemies. He also said he could not promise that he would not visit the country again.
The investigation is set to continue next week.
Naffaa, a member of the Druze community, led a delegation of 330 Druze religious leaders on a visit to Damascus. During his stay, the Israeli lawmaker met with Syrian government officials and was even interviewed by various media outlets.
The controversial MK arrived to the International Crime Unit in Petah Tikva on Sunday morning to explain what had transpired during his visit to Israel's northern neighbor.
"They asked me many questions," Naffaa said after Sunday's session had ended. "Investigators like to scrutinize all sorts of things. They asked me who organized the trip, where we slept and who we met with," he said.
Naffaa was also questioned about the Balad party gathering that was held in Shfaram the night before the Annapolis peace conference last month. During the get-together, he read out various blessings for the peace summit that were sent by Palestinians living in Syria, Lebanon, Europe and the Palestinian territories.
"I was asked if the peoples' positions on Annapolis were identical to ours and I said that some did in fact represent matching opinions," Naffaa said.
Syria is not my enemy
The Balad MK was also asked why a Knesset member and attorney who is familiar with Israeli law would choose to knowingly break it and travel to an enemy state such as Syria.
"I answered them by saying that although the law forbids traveling to Syria, it is a law that is not hermetic, it's a law that grants the Interior Minister the right to allow permission for such trips under special circumstances," he responded.
According to Naffaa, the Interior Ministry chooses to discriminate against Druze religious leaders who, he claimed, had long ago issued requests to visit Syria but whose requests had been rejected.
"They received permission to pass through the Kuneitra crossing when Israel knew with certainty that Syria would not allow that to happen," the Knesset member explained.
"I decided to accompany the delegation to protest the Interior Minister's discriminatory judgment, it is inconcievable that the State allows its Muslim citizens to go to Mecca while we are not."
As to whether Damascus had seen the last of him, Naffaa said he could not promise that we would not visit Syria in the future.
"I am the son of a Syrian mother whose father was killed in the uprising of 1925. How can it be that her aunts and uncles are my enemies? Can it be that sons of the same nation are each other's enemies?"