Knock! Knock, knock!
Outside the office of the head of the Operations Security Department, within the Police Force's National Security Department, Lau Bo-keung raised his hand and knocked on the translucent glass door.
His boss's instructions were to have Chiang Tin-yeung clean his own house.
Before Lau Bo-keung took action, he naturally had to speak with He Wenzhan, who currently controlled the TUI Intelligence Network.
Even though they had been partners through life and death for years, and this would take no more than a word.
Moreover, given his position and standing, he was fully entitled to call Chiang Tin-yeung directly.
But precisely because of that, Lau Bo-keung could not neglect to show his respect for his elder brother-in-arms.
Although Lau Bo-keung and He Wenzhan now held the same police rank and both served within the National Security Department, things had once been different.
Back when Zhou Quan had taken up his grassroots posting in West Kowloon, Lau Bo-keung had served directly under He Wenzhan's command.
The Police Force's Chicken Biscuits and Sergeants might not have differed greatly within the Junior Ranks.
In practice, however, there was a very clear gap in seniority between the two.
What was more, He Wenzhan had been Zhou Quan's only trusted confidant at the time.
In terms of how long they had followed Zhou Quan, even the current Senior Assistant Commissioner of Police Zhou Xingxing and Senior Assistant Commissioner of Police Luo Danian fell a little short of He Wenzhan.
Add to that all the bloodshed they had weathered over the years, and Lau Bo-keung and He Wenzhan had grown exceptionally close.
If Director Lu of the ICAC, who was about to be promoted to Deputy Commissioner, was Lau Bo-keung's close friend and confidant,
then He Wenzhan, his elder brother-in-arms, was a brother born