47 cards where the card types include “detective” and the set is “mkm”

Case File Auditor (Murders at Karlov Manor #7)
Griffnaut Tracker (Murders at Karlov Manor #17)
Marketwatch Phantom (Murders at Karlov Manor #24)
Novice Inspector (Murders at Karlov Manor #29)
Perimeter Enforcer (Murders at Karlov Manor #31)
Seasoned Consultant (Murders at Karlov Manor #33)
Wojek Investigator (Murders at Karlov Manor #36)
Agency Outfitter (Murders at Karlov Manor #38)
Cold Case Cracker (Murders at Karlov Manor #46)
Conspiracy Unraveler (Murders at Karlov Manor #47)
Crimestopper Sprite (Murders at Karlov Manor #49)
Exit Specialist (Murders at Karlov Manor #55)
Forensic Gadgeteer (Murders at Karlov Manor #57)
Forensic Researcher (Murders at Karlov Manor #58)
Hotshot Investigators (Murders at Karlov Manor #60)
Jaded Analyst (Murders at Karlov Manor #62)
Mistway Spy (Murders at Karlov Manor #65)
Projektor Inspector (Murders at Karlov Manor #68)
Steamcore Scholar (Murders at Karlov Manor #71)
Surveillance Monitor (Murders at Karlov Manor #73)
Basilica Stalker (Murders at Karlov Manor #78)
Homicide Investigator (Murders at Karlov Manor #86)
Persuasive Interrogators (Murders at Karlov Manor #98)
Unscrupulous Agent (Murders at Karlov Manor #109)
Reckless Detective (Murders at Karlov Manor #141)
Vengeful Tracker (Murders at Karlov Manor #147)
Aftermath Analyst (Murders at Karlov Manor #148)
Hedge Whisperer (Murders at Karlov Manor #165)
Loxodon Eavesdropper (Murders at Karlov Manor #168)
Rubblebelt Maverick (Murders at Karlov Manor #174)
Sample Collector (Murders at Karlov Manor #175)
Sharp-Eyed Rookie (Murders at Karlov Manor #176)
Vitu-Ghazi Inspector (Murders at Karlov Manor #183)
Agrus Kos, Spirit of Justice (Murders at Karlov Manor #184)
Alquist Proft, Master Sleuth (Murders at Karlov Manor #185)
Curious Cadaver (Murders at Karlov Manor #194)
Evidence Examiner (Murders at Karlov Manor #201)
Ezrim, Agency Chief (Murders at Karlov Manor #202)
Faerie Snoop (Murders at Karlov Manor #203)
Granite Witness (Murders at Karlov Manor #206)
Izoni, Center of the Web (Murders at Karlov Manor #209)
Kellan, Inquisitive Prodigy // Tail the Suspect (Murders at Karlov Manor #212)
Lazav, Wearer of Faces (Murders at Karlov Manor #216)
Meddling Youths (Murders at Karlov Manor #219)
Private Eye (Murders at Karlov Manor #223)
Undercover Crocodelf (Murders at Karlov Manor #239)
Melek, Reforged Researcher (Murders at Karlov Manor #430)

Though this query has ended, its relics still slumber in New Argive.