A(n) acts as an evidence locker or safe to preserve the integrity of evidence.

secure facility

Explanation:

This secure faciltiy is usually managed by the forensic team that is assigned to the case. Most facilities usually have these characteristics :

-  controlled area with full CCTV to monitor the facility from far away.

- reviewed and restricted access to the facility. This access would be limited only to minimum number of people, so it can be easily investigated in case the evidence was compromised.

- alarm coverage that triggered in case someone tried to enter the facility without proper procedure.

the president has the power to appoint federal judges, ambassadors, and other "principal officers” of the united states, subject to senate confirmation of such appointments.

what is the tax base for the sales tax?

it should be (usually ) 6%