  We propose a generic and model-independent search strategy for probing
tree-level CP-violation in inclusive multi-lepton signals and we extend the
standard expression for tree-level CP-violation in scattering processes at the
LHC to include the cases where the initial state in not self-conjugate. We then
use TeV-scale 4-fermion operators of the form $tu\ell\ell$ and $tc \ell \ell$
with complex Wilson coefficients as an illustrative example and show that it
may generate ${\cal O}(10\%)$ CP asymmetries that should be accessible at the
LHC with an integrated luminosity of ${\cal O}(1000)$ fb$^{-1}$
