Search of CP violation in baryons with the LHCb detector

The latest results from the LHCb collaboration for the search for $CP$ violation in $b$-baryon decays are reported here. The first article presented is the search conducted in the ${\mathrm{\Lambda }}_b^0\to p{\pi }^{-}{\pi }^{+}{\pi }^{-}$ decay, and the subsequent observation of $P$ violation. The following paper describes the search and the first observation of the ${\mathrm{\Lambda }}_b^0\to D^{0}p{K}^{-}$ decay, with $D^0\to K\pi$, Cabibbo-favoured and doubly suppressed mode. This proceeding concludes with the first amplitude analysis performed in ${\mathrm{\Xi }}_b^{-}\to p{K}^{-}{K}^{-}$, whose model allows for $\mathit{\text{CP}}$ violation.