Seized and took into custody (8)
I believe the answer is:
arrested
'seized and took into custody' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for arrested that I've seen before include "Stopped or slowed down progress" , "Checked" , "Apprehended and taken into custody" , "Taken into custody or stopped" , "Detained by legal authority" .)