A prominent defence industry exhibition has opened in Perth today, with a heavy police presence deployed ahead of the event's commencement.
The expo, which is among the leading gatherings of its kind, has attracted attention for its controversial nature, prompting authorities to put significant security measures in place around the venue.
It is understood the strong policing response reflects concerns surrounding the event, which draws together key figures and exhibitors from across the defence sector.
Further details are expected to emerge as the exhibition gets underway throughout the day.
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