  In this paper we use the spinor-helicity formalism to calculate 3-point
functions involving scalar operators and spin-$s$ conserved currents in general
3d CFTs. In spinor-helicity variables we notice that the parity-even and the
parity-odd parts of a correlator are related. Upon converting spinor-helicity
answers to momentum space, we show that correlators involving spin-$s$ currents
can be expressed in terms of some simple conformally invariant conserved
structures. This in particular allows us to understand and separate out contact
terms systematically, especially for the parity-odd case. We also reproduce
some of the correlators using weight-shifting operators.
