4. Listening: Other Security Systems

Besides walk-through metal detectors, there are also other security systems. If companies want to make their headquarters more secure, they can choose from a range of options, for example, passwords and pin numbers or various biometric devices, such as signature verification systems, iris scanning, voice recognition, face recognition, vein scanning, hand scanning or fingerprint scanning. In recording 22 that comes with your coursebook, Bob is trying to find the best security system for the offices of his company. Which of the systems listed above do you think he will choose? Listen to the recording to find out. As you listen, complete this listening comprehension task. Alternatively, you can read the transcript of the recording on pp. 122-123 in your coursebook (Bonamy, D. (2011). Technical English Level 3 Coursebook. Pearson Longman).