In next week’s Torah portion, Jacob is brought the many-colored coat he’d given his favorite son, Joseph. The coat has been dipped in goat’s blood to trick Jacob into believing Joseph was torn by a wild animal, rather than that his own brothers sold him into slavery (Genesis 37:23-36).
“We found this; identify, if you please: Is it your son’s tunic or not?” (verse 32; using Stone/Artscroll translation here and below)
Jacob responds: “My son’s tunic! A savage beast devoured him! Joseph has surely been torn to bits! [tarof toraf yosef]” (verse 33)
Jacob initiates no investigation. Obviously there was no forensic unit in the area to test the blood or ferret out other clues. Still, Jacob doesn’t even ask a question, as far as we know. The sons never even have to lie outright. Jacob simply jumps to a conclusion and then begins to mourn.
Later in the same portion, Joseph’s older brother Judah fails to look carefully at matters pertaining to his daughter-in-law Tamar, and she is nearly put to death by the court before he realizes his mistake(s) (Genesis 38).
Judah, too is asked: “identify, if you please [evidence in the case].” (Gen. 38:25)