The man was accompanying Yellow Rose, and Yellow Rose was an elite external operative of the Interpol Asia-Pacific Regional Bureau.
Therefore, there might not necessarily be anything wrong with the man's identity.
Even so, that was no reason for him to carry a firearm.
Within Hong Kong Island, only its Disciplined Services and the Hong Kong Garrison had the legal right to possess weapons.
Apart from them, even their colleagues from the Mainland were no exception.
Carrying weapons without first contacting and coordinating with the Hong Kong Island Police Force was against regulations.
Before this, the Security Department had never received any official documents requesting cooperation with law enforcement agencies outside Hong Kong Island on any mission within its territory.
That being the case, the man before them was clearly in illegal possession of a firearm.
Even if he had close ties to Interpol, or might actually be an Interpol member himself.
Without permission from the Hong Kong Island Police Force, even Interpol personnel were not allowed to carry firearms.
Guan Zu's sudden move immediately caught Yeung Kam Wing's attention.
Without another word, he led the other officers beside him forward, surrounding the man with their guns drawn.
At the same time, Chow Sing Sing pushed open the door of Car Five in the middle of the convoy and stepped out.
With his boss's personal disciple facing an unexpected situation, Chow Sing Sing naturally could not stand idly by.
"Sir, please don't misunderstand!"
Seeing the Hong Kong Island Police Force officers surrounding him, the man's expression changed sharply several times.
He hurriedly explained, "I'm Zhou Hong, an agent with America's Federal Bureau of Investigation. I can prove my identity."
The subtle change in his expression earlier had been because he was worried that the weapon he carried would be discovered.