This dissertation aims to report the search for charge-parity (CP) violation in the singly-Cabibbo-suppressed decay Dₛ⁺ → K⁻ K⁺ K⁺ at the LHCb Experiment (CERN). According to the Standard Model, direct CP violating asymmetries in charm decays can occur but only up to the order of 10⁻³ or less. If asymmetries at the percent level are found, new CP violation mechanisms beyond the Standard Model are necessary. A model- independent technique known as the Mirandizing method is performed to look for local charge asymmetries in the phase space (the so-called Dalitz plot), of the decay Dₛ⁺ → K⁻ K⁺ K⁺. Our final data sample consists of over 50 thousand events collected in 2012 by the LHCb experiment from proton-proton collisions at a center-of-mass energy of 8 TeV. This is the first time that such analysis is performed to this channel. To guarantee that no nuisance asym...