What must store detectives wear during an apprehension?

Store detectives must wear a badge or ID during an apprehension to clearly identify themselves as members of the store's security team. This is crucial not only for ensuring that they are recognized as legitimate personnel conducting necessary security measures but also for establishing authority during the apprehension process. Displaying identification helps to communicate to both the individual being apprehended and any witnesses that the detective is officially authorized to perform their duties, which can help to de-escalate any potential confrontations or misunderstandings.

The other options do not provide the necessary identification or professionalism required during such sensitive interactions. Casual clothing might not convey authority, while wearing a name tag alone may not be sufficient to indicate that they are part of the security team. Using store merchandise could lead to confusion regarding their role and detract from the professionalism necessary in such a serious situation.