When will do hardbarrication?

- When there is a perceived or known threat to personal or public safety, for example during high-profile events to prevent possible car bomb, truck bomb attacks as the vehicle borne improvised explosive devices (VBIED).

- To control large crowds during events:

1. Specialised event (sports competitions), where there is often large groups involved

2. During times of protest with large groups who require separation in some cases to ensure safety of life