Something which may need to be clarified sooner than later is the concept of partners. The only vague definition around partnerships in the core rules is on page 194 with a DiJi partner being assigned to a case—which doesn't read as a true police officer "partnership" and has no actual mechanics defined around it. On page 57 in the first example box, it states "Later, JN7-4.79 “Jane” and her Blade Runner partner, old-timer and Cityspeaker Resch..." and on the Willem Novak character sheet it states "Your previous partner Remy Krumpak is a fellow Blade Runner and an old-timer like you..." and on the Fenna character sheet it states "Radha Udaya was your first partner in the Rep-Detect Unit."
Up until now none of the Blade Runners we've seen in the films, books, show, or comics have had partners, though in 2049 Gaff does say "Deckard liked to work alone. So did I. We worked together to keep it that way." which implies that a Blade Runner could have a partner if they preferred. It makes sense that with a lone-wolf detective fantasy the primary mode of play would be going at it solo, and indeed the rules seem to be built around the idea of even group play involves Blade Runners going off and working alone as much as they are able.
That being said, the text of the materials here does reference partners, and with most other aspects of police work in this world well-defined, it seems a bit unusual that partnership is referred to but skipped over. Perhaps the implication is that all the PCs in a campaign are loosely partnered with the other PCs, but the wording of several of the references implies that official partnerships are also on the table. It might make sense that rookies get partners until they are up to snuff, but McCoy in the game was a rookie without a partner.
Would love to hear how a more defined partner mechanic might work, or at the very least get some flavor text in one of the subsequent books that goes into how Rep-Detect partners are assigned and operate together. Getting stuck with a corrupt or squeaky-clean partner when you're the opposite could be a lot of fun, especially.