Blow-ups can also be performed in the symplectic category, by endowing the symplectic manifold with a compatible almost complex structure and proceeding with a complex blow-up.
The preliminary proceeding gives each citizen, feeling unlawfully mistreated by an authority, the possibility to object and to force a review of an administrative act without going to court.
A confession not preceded by a Miranda warning where one was necessary can not be admitted as evidence against the confessing party in a judicial proceeding.
