The relaxation mechanisms present in a side-chain liquid crystalline polymer have been studied by Thermally Stimulated Depolarization Currents (t.sc.), in a wide temperature range covering the glassy state, the glass transition region, and the liquid crystalline phase. The thermal sampling procedure was used to decompose the complex relaxations into its narrowly distributed components. Three relaxation mechanisms were observed in this polymer: a relaxation below the glass transition temperature that is broad and extends from -150 degrees C up to -110 degrees C, the glass transition relaxation whose maximum intensity appears at similar to 20 degrees C, and a relaxation above the glass transition temperature, in the liquid crystalline phase. The attribution of these relaxations at the molecular level is discussed.