Not all surveillance has the ability to follow an individual back in time and space to any arbitrary position.
For me, (not trying to talk shit on you personally), I consider that ability to be the outcome of a properly configured surveillance system. Being able to trace the components of the event (including a person of interest) both forward and backward in time in order to investigate.
It's not being able to trace forward and back in time alone that is significant, but across time and space, such that you find footage of a crime and trace the criminal's life backwards to their doorstep (or hostel). To do that across a city requires complete networked coverage, and is not normal - most cities can't do that. That type of surveillance technology is relatively new.
For me, (not trying to talk shit on you personally), I consider that ability to be the outcome of a properly configured surveillance system. Being able to trace the components of the event (including a person of interest) both forward and backward in time in order to investigate.
It's not being able to trace forward and back in time alone that is significant, but across time and space, such that you find footage of a crime and trace the criminal's life backwards to their doorstep (or hostel). To do that across a city requires complete networked coverage, and is not normal - most cities can't do that. That type of surveillance technology is relatively new.