A crime scene can be tainted by externals, so can people, that is why they call it integrity of the crime scene.
Go play is your nasty sandbox. You bore me with your boorish behavior.
This crime scene has been tainted as many are. Depends on who taints it with purpose or it is tainted by something natural, or unintended, that taints it.
Sorry, buddy. Words mean things . . . despite what you say. Amateur.