When searching captured and detained personnel, who on the search team identifies and positions each member?

The answer is Supervisor

When searching captured and detained personnel, the Supervisor will be responsible for identifying and positioning all the members. 

This is important, since each and every team member has been allocated tasks, job description and responsibilities. Only when every one will follow these, would overall discipline and cohesion of the team work. 

In such circumstances, it is important that only the Supervisor carries out these tasks and no one else.