Who is he?

I first saw this sign on a lamp pole in Chaguanas, on my way to a meeting. At the time I thought it was related to a domestic issue - someone putting up a sign to expose a dishonest 'horner man' from the area or something. Then driving through Port of Spain the other evening, I saw a similar sign tacked up on a lamp post outside the gas station with the Quik Shoppe (lower down from Strand Cinema). I began to wonder if it was a nationwide thing ... most likely politically motivated. Does anyone know who he is and what he lied about?
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Elspeth