The speed of the Police Force's National Security Department was beyond question. Siu Chi Yan had barely hung up when the command center immediately uncovered the relevant leads.
"Sir Yang, those two calls went to Tsim Sha Tsui and North New Territories respectively."
The officer who had just investigated and intercepted the calls rapidly reported his findings to his immediate superior.
"The recipient of the first call was in the Austin Building on Austin Road in Tsim Sha Tsui!"
"That's Angela, the suspicious target exposed last night!"
"This number belongs to the landline the target had installed."
The name Angela sounded decidedly feminine.
And indeed, it was.
It was the name of Siu Chi Yan's assistant in his office at Hong Kong Polytechnic University.
In reality, however, the person currently using that name was a male suspect.
He was the hacker courier who provided Siu Chi Yan with intelligence support, currently under surveillance by a team led by Jing Jinxian.
Siu Chi Yan had called his mobile last night, whereas just now, he had called the landline.
"The trace on the other phone number shows that the recipient is currently inside the North District Dangerous Goods Warehouse."
The Intelligence Group's report continued, pinpointing the recipient of Siu Chi Yan's second call with equal precision.
"The phone is registered under a real name and belongs to a prosecutor."
Barring any surprises, this courier was likely the sleeper agent Siu Chi Yan had planted inside the North District Dangerous Goods Warehouse.
He was meant to play a critical role when the Hong Kong Island Police Force handed DC-8 over to the Two Koreas.
However, with the two important couriers, Kam To-nin and Cheung Yi-kwan, now under arrest, Siu Chi Yan had no choice but to activate his sleeper agent ahead of schedule.