  We investigate Lepton Flavor Violation (LFV) in the general extension of the
Standard Model parametrized by the gauge invariant operators of dimension-6. We
discuss 3-body charged lepton decays and decay of $Z$ boson to lepton pair and
compare the obtained analytical expression with the current experimental
results. We derive the numerical bounds on the size of the Wilson coefficients
parameterizing the allowed size of New Physics effects.
