Legally, they can be anywhere - even disguised as non-police-type vehicles.
No.
Glimpse
Hearing, sight and smell
He saw her in the garden of Eden.
No
No it is not legal in the sight of law or a religion.
Catch-22 by Joseph Heller
Bats have poor sight, but very good sonar: good enough to fly and catch insects.
Police cars in sight.
Uh, if someone throws it to them?
No that's why they call it dealing under the table. Or out of sight.
Yes. It is usually referred to as 'plain view.'
because they relil on their smell to catch their food or prey and their incredible sight in the dark