  The nonlocal response of chiral electron fluid in a semi-infinite Weyl
semimetal slab with the electric current source and drain attached to its
surface is studied by using the consistent hydrodynamic framework. It is found
that the Chern-Simons terms lead to a spatial asymmetry of the electron flow
and the electric field. Most remarkably, the corresponding topological terms
could result in a negative nonlocal resistance. In addition, they give rise to
the anomalous Hall current, which is sensitive to the spatial distribution of
the electric field in the plane of the contacts and depends on the orientation
of the chiral shift.
