Bs Mixing, DeltaGamma_s and CP Violation

We discuss the results from the Tevatron experiments on mixing and {\sf CP} violation in the $B_s-\bar{B}_s^0$ system, with particular emphasis to the first measurements of the decay width-difference $ΔΓ_s$ and the {\sf CP} violating phase $β_s$ using flavor tagging information. We also briefly review the charge asymmetry measurements in semileptonic $B_s$ decays and in $B^\pm \to J/ψK^\pm$ decays.