Emergency Interrogation Room

Both about a female investigator who is smart and uses slight handed tricks (whether verbal or physical) to solve crime

>Strong female lead
>Both have investigation
>Both deal with interrogation
>The way conversations happen and the atmosphere is slightly similar

No doubt you'll like one if you like the other

1) Police investigations of cases through good interrogation techniques.
2) Female leading character for the drama.
3) While micro gestures (being the main theme of Silent Voice) is not used in Kinkyu, the usual techniques of interrogation remains the same, e.g. Fight, Flight, Freeze or Fib Response is explained in the dramas.
4) Most of the action happens within the Police Station.
5) Cooperation with other police departments, not concentrating on interrogation to resolve criminal cases.