Which senses are used in electronic surveillance?

• A. Audio + Visual
• B. Hearing only
• C. Taste and smell
• D. Touch and smell

Answer: (A)

Electronic surveillance relies on what you can see and what you can hear. Cameras provide the visual data, showing movements and activities in a space, while microphones capture the sounds, voices, and ambient noises that visuals alone can miss. Together, these two senses give a fuller picture of what’s happening, which is why the combination of audio and visual is used. Taste, smell, and touch aren’t typically captured by standard surveillance devices, so those senses don’t fit the common setups.