Constraining the CKM Angle $\gamma$ at LHCb

The LHCb experiment is a general purpose forward spectrometer operating at the Large Hadron Collider, optimised for the study of $B$ and $D$ hadrons. LHCb has collected 3 fb$^{−1}$ of integrated luminosity, which provides an unprecedentedly large sample of $B$ hadron decays to final states involving charmed hadrons. These decays offer many complementary ways to measure the angle $\gamma$ of the CKM triangle. The latest combination of LHCb measurements to provide a value of $\gamma$ is presented, along with the first measurements of $CP$-violating observables in $B^+ \to DK^+$ and $B^+ \to D\pi^+$ decays with $D \to K^0_S K^\pm \pi^\mp$ final states. The first observations of a number of b-baryon decays that have the potential to contribute to measurements of $\gamma$ are also reported.