They are similar because of the profession, a Forensic Scientist partners with a cop.
There's a crime involved, and the leads are trying to close and find the killer that uses the same modus operandi (though this part is more similar to PFJ season 2).
Though PFJ has a more serious tone. If you want to watch a crime investigation involving forensic science which is closer to reality, PFJ is the best. Medical Examiner Dr. Qin generally aims for entertainment more than the cases tackled, thus it is lighter to watch.
There's a crime involved, and the leads are trying to close and find the killer that uses the same modus operandi (though this part is more similar to PFJ season 2).
Though PFJ has a more serious tone. If you want to watch a crime investigation involving forensic science which is closer to reality, PFJ is the best. Medical Examiner Dr. Qin generally aims for entertainment more than the cases tackled, thus it is lighter to watch.