  It was recently argued that in heavy ion collision the parity could be
broken. This Note addresses the question of possibility of the experimental
detection of the effect. We discuss how parity violating effects would modify
the final particle distributions and how one could construct variables
sensitive to the effect, and which measurement would be the (most) conclusive.
Discussing different observables we also discuss the question if the
``signals'' can be faked by ``conventional'' effects (such as anisotropic flow,
etc.) and make estimates of the signals.
