Who Were the Pinkertons?

The first time Arthur Morgan, the outlaw protagonist of the popular video game Red Dead Redemption 2, meets Pinkerton agents Milton and Ross is in one of the game’s cut scenes. In December, the 167-year-old company, now owned by the Swedish security firm Securitas AB and called Pinkerton Consulting and Investigations Inc., sent a cease-and-desist letter to Take-Two Interactive Software Inc., owner of Rockstar Games, the creator of Red Dead 2, requesting some form of royalties for the use of its trademark. The Pinkertons had pursued the James gang before, to no avail, but that year the Adams Express Company, owners of some property the Jameses had spirited away during a train robbery, contracted Pinkerton to try again.

Source: slate.com