  We develop the BRST approach for all massless integer and half-integer higher
spins in 4D Minkowski space, using the two component spinor nota- tion and
develop the Lagrangian formulation for supersymmetric higher spin models. It is
shown that the problem of second class constraints disappears and the BRST
procedure becomes much more simple than in tensorial nota- tion. Furthermore,
we demonstrate that the BRST procedure automatically provides extra auxiliary
components that belong in the set of supersymmetry auxiliary components.
Finally, we demonstrate how supersymmetry transfo- rmations are realized in
such an approach. As a result, we conclude that the BRST approach to higher
spin supersymmetric theories allows to derive both the Lagrangian and the
supersymmetry transformations. Although most part of the work is devoted to
massless component supersymmetric models, we also discuss generalization for
massive component supersymmetric models and for superfield models.
