Measurement of the Bs mixing phase at LHCb

<!--HTML--><p>At scales that are not accessible by direct searches at the LHC, precision measurements of CP violating observables in the mixing and decay of B mesons&nbsp; may reveal new physics through loop corrections. A good candidate for such indirect searches is the measurement of the CP violating phase phi_s which arises in the interference between the amplitudes of Bs meson decaying directly and after oscillation via b-&gt;ccs transitions. This talk will cover recent measurements of phi_s from Bs-&gt;J/psihh and DsDs decays at LHCb. Additionally, estimates of possible penguin contributions which are assumed to be zero in SM predictions will be discussed.</p> <p>&nbsp;</p>