Which of the following statements about taking control of a scene is not correct? $($D$4,$ L$7\mathrm{.}3)$

The controller must prevent anyone from entering the scene until the investigator has arrived.

Once evidence has been collected and removed, the person controlling the scene directs recovery efforts.

The person controlling the scene must ensure that no one can make changes to the scene and cannot take pictures, recordings or videos unless they enter beyond the chain of custody.

The person taking control of the scene ensures that the scene is protected from contamination or changes that might destroy evidence.