Chain of custody is achieved in which of the following scenarios a police officer tags each unit of evidence and places it in a separate envelope a detective seals each unit of evidence in a manila envelope, signs and dates the envelope, and places it in protective custody an evidence technician tags each unit of evidence in a sealed envelope, signs and dates the envelope, and places it with the evidence locker personnel for safekeeping a police officer tags each unit of evidence, places it in a secure envelope, signs and dates the envelope, gives the envelope to evidence personnel for safekeeping and logging of access

A police officer tags each unit of evidence, places it in a secure envelope, signs and dates the envelope, gives the envelope to evidence personnel for safekeeping and logging of access

Explanation:

The chain of custody is a concept commonly used in all disciplines within the criminalistics sciences and consists generally of a methodical, chronological, careful and detailed process of search and seizure, handling, custody, control and path of criminals. traces collected at the scene of a crime, which after analyzing its result will be presented in the form of an expert report. When a chain of custody is established, a police officer identifies each unit of evidence, places it in a secure envelope, signs and dates the envelope, delivers the envelope to evidence personnel for safekeeping and access registration.

i am pretty sure it is d.