A perimeter wall of standard height should have further reinforcement

A perimeter wall of standard height should have further reinforcement with which of the following?
1. Barbed wire on top
2. Setting spikes
3. Concertina wire
Select the correct answer using the code given below.

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1 and 2 only

1 and 3 only

1, 2 and 3

2 and 3 only

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This question was previously asked in

UPSC CISF-AC-EXE – 2024

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The correct answer is C) 1, 2 and 3. All three options – barbed wire, setting spikes, and concertina wire (often razor wire) – are common and effective methods used to reinforce the top of a perimeter wall or fence. They serve as physical deterrents and obstacles to prevent or hinder unauthorized climbing. Barbed wire provides a tangled barrier. Spikes present sharp points making climbing difficult and painful. Concertina wire, especially razor wire, is a very effective physical barrier due to its sharp edges and springy coils. Using any combination or all three enhances the security of the perimeter.

Barbed wire, setting spikes, and concertina wire are all recognized and widely used supplementary physical security measures applied to the top of walls or fences to deter intrusion.

The choice of reinforcement often depends on the required level of security, cost, and aesthetic considerations. Concertina wire typically offers a higher level of deterrence than standard barbed wire. Spikes can be particularly effective where space is limited. Implementing multiple types can further enhance security.

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