  We answer the question asked by Louder, McReynolds and Patel, and prove the
following statement. Let L be a RAAG, H a word quasiconvex subgroup of L, then
there is a finite dimensional representation of L that separates the subgroup H
in the induced Zariski topology. As a corollary, we establish a polynomial
upper bound on the size of the quotients used to separate H in L. This implies
the same statement for a virtually special group L and, in particular, a
fundamental groups of a hyperbolic 3-manifold.
