As it is useless, upon seeing certain footprints on the ground, to argue, whether they are the wolf's or not, is all discussion regarding the nature of righteousness and unrighteousness. Nobody in this world ever witnesses the fruits of righteousness and unrighteousness.
अधर्मो धर्म इत्येतद् यथा वृकपदं तथा॥ धर्माधर्मफले जातु ददर्शेह न कश्चन।