It is the first time for Alice Chan (陳煒) and Shaun Tam (譚俊彥) to play a couple in Forensic Heroes IV (法證先鋒IV) drama and there is no intimate scenes. Because of their enriching acting experiences, it is not considered difficult and both know how to portray their emotions simply by an eye contact. They pointed acting was a heavy addiction which resembled drugs to them.

When asked about the most challenging part in the series, Alice pointed it was difficult to memorise the lengthy and professional dialogues: “As a forensic officer, there is many dialogues related to science and we have to learn to do experiments and operate the equipment. We must show our professionalism and cannot miss the procedures at all.” As for Shaun, he remarked acting as a cop was easy since it was not the first time: “I used to play a normal cop and feel more comfortable to act as senior police inspector this time. Hence, I leave all the minor matters to Rebecca Zhu (朱晨麗) who plays my subordinate.”

Mentioning about working together with film producer, Mui Siu Ching (梅小青) for the first time, Shaun felt grateful to her for giving an opportunity to him and Alice felt happy to work with her again after Deep in the Realm of Conscience (宮心計2深宮計) drama. Both described Forensic Heroes IV series gave positive energy and there was no grey area, and the audiences could see their professionalism.