[en] A new technique for determination of P-odd interaction constant of charged pions with quarks has been suggested. The technique is based on the search of p-odd effects in the processes of formation of direct gamma quanta or muon pair in hadron reactions at high energies. Structure of p-even and p-odd effects in the processes of a₁+a₂→γ+X and a₁+a₂→μ⁺+μ^-+X has been studied. Angular correlations of muon pairs conditioned by violation of p-invariance in the investigated processes have been found. P-odd and p-even currents of the π^+-+q→q+γ* process have been calculated : in the Brownian approximation. The analytical expression for the constant of p-odd πqq-interaction has been obtained It has been noted that expressions obtained describe p-odd effects in q+q^-→π⁺+μ⁺+μ^- processes and grow linearly with the growth of muon pair effective mass M²