Matthew 7:16-20 King James Version (KJV)
16 Ye shall know them by their fruits. Do men gather grapes of thorns, or figs of thistles?
17 Even so every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit.
18 A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.
19 Every tree that bringeth not forth good fruit is hewn down, and cast into the fire.
20 Wherefore by their fruits ye shall know them.
It is, without a doubt, God's place for final judgement on where someone spends eternity.
However, He never intended for us to be fools, bury our heads in the sand and not recognize evil behavior.