In terms of plot and writing, definitely a lot better than the Detective Investigation Files (except the fourth one, which is a god-tier drama). The chemistry between Flora Chan and Bowie Lam is amazing, no wonder they were one of the golden couples of that era. But while I like that there is no(t much) melodrama, the drama is actually kinda forgettable and the cases were pretty unoriginal.

Overall, a pleasant watching experience, especially since I love the pairing of Flora/Bowie. The Untraceable Evidence ran so that the Forensic Heroes series could fly (and then dovetail into a disaster).