Where my husband works, they pretty much always send Officers out in twos or more; it's a dangerous area, and very densely populated, so what it comes down to is a safety issue.
He has a steady partner, but they will sometimes switch it up, because a partner is out sick, or has court, perhaps a new or different Sergeant or Lieutenant takes over a tour...there's a bunch of reasons that Roc will sometimes work with someone other than Ivan.
Does that ever happen to your Cop? How many Cops out there ride alone? What's the patrol area like where he works? Does it make you nervous when they switch it up? Does it make him nervous? Feel free to comment back, share, and vent.
Cops: knock yourselves out...now's your chance!