  We analyze the 3d free massive fermion theory coupled to external sources.
The presence of a mass explicitly breaks parity invariance. We calculate two-
and three-point functions of a gauge current and the energy momentum tensor
and, for instance, obtain the well-known result that in the IR limit (but also
in the UV one) we reconstruct the relevant CS action. We then couple the model
to higher spin currents and explicitly work out the spin 3 case. In the UV
limit we obtain an effective action which was proposed many years ago as a
possible generalization of spin 3 CS action. In the IR limit we derive a
different higher spin action. This analysis can evidently be generalized to
higher spins. We also discuss the conservation and properties of the
correlators we obtain in the intermediate steps of our derivation.
