If possible, would you support a brain scan warrant?

[discntnt_irny_srcsm]

71. In addition to the self-incrimination problem...

...it is a right of the accused to "be confronted with the witnesses against him".

6A:
"In all criminal prosecutions, the accused shall enjoy the right to a speedy and public trial, by an impartial jury of the State and district wherein the crime shall have been committed, which district shall have been previously ascertained by law, and to be informed of the nature and cause of the accusation; to be confronted with the witnesses against him; to have compulsory process for obtaining witnesses in his favor, and to have the Assistance of Counsel for his defence."

If the technology would be perfected, like the polygraph, one of the issues is the lack of independence in that the you can't confront nor examine yourself nor effectively participate in convincing a jury why they would have reason to doubt you.

The additional difficulties of how we somewhat effectively remember things more as we would like than as they happened would make such interpretations more art than science.