What action should be taken by an officer if a suspect appears high during interrogation?

If a suspect appears high during interrogation, the appropriate action is to delay the questioning. This allows for the suspect to regain full composure and ensures that the skills of interrogation are applied effectively. Conducting an interrogation while the suspect is impaired may lead to unreliable or coerced statements, which can jeopardize the integrity of the investigation and any subsequent legal proceedings.

It's important to ensure that the suspect is in a clear state of mind to understand the questions being asked and to respond appropriately. Delaying the questioning respects the due process rights of the suspect and maintains the quality of the information collected during the interrogation. In addition, it protects the officer from potential challenges regarding the validity of the interrogation process later on in court.

The other options, while potentially relevant in different contexts, do not address the immediate necessity of ensuring a clear and effective interrogation environment. For instance, proceeding as normal could lead to ineffective questioning, while calling for backup might not be necessary unless there are additional signs of danger or resistance from the suspect. Providing refreshments, although a gesture of goodwill, does not address the primary concern of ensuring the suspect is fully aware and capable of participating in the interrogation.