Who would you trust? The Dalai Lama or the Chinese Premier?

The Chinese premier accuses the Dalai Lama as the mastermind of the recent violent riots in Tibet.
He commented that "we only listen to what he(Dalai Lama) says but more importantly we should observe what he does"
People often accuse China of opressing the Tibetian people.

But, according to history, the Dalai Lama was actually the owner of serfs and slaves in Tibet until his rule was overthrown in 1959.

Ex-CIA employee Ralph McGehee admitted, the Dalai Lama went into exile in India where the CIA set up and trained the Tibetan contra army for uprising against the Chinese during the 1970s.

The question is, would you trust the Chinese Premier or he is a liar just like the Iraqi Information minister?
The Dalai Lama often appears to us as a man of peace that preaches non-violence, however is he just a good liar that fooled the rest of the world?