Direct CP violation at LHCb

During 2011, LHCb has collected an integrated luminosity of 1.0 fb−1 giving rise to a large variety of measurements. Among these, measurements of direct CP violation in B decays play a central role. Three different analyses are presented: the first evidence of CP violation in the B0 s system and the observation of CP violation in the B0 system, using B0 → Kπ and B0 s → πK decay channels; the evidence of CP violation in B± → DK± decays with the first observation of the suppressed ADS mode; and a preliminary result showing the evidence of CP asymmetry in charmless three-body charged B decays.