In the cold open, when Holt and Jeffords are doing their special handshake, the camera shows Boyle standing beside them waiting for his turn, although his handshake happened before Jeffords's and he presumably exited the conference room after moving towards the door. Santiago is also not seen in the shot, although her handshake comes right after Jeffords's.
In a previous episode when they fake a funeral for Pimento Gina and Holt give the people who come a high five. When Terry makes a comment about it Holt tells him that he quit likes them now even though in this episode he says that every moment giving high fives was hell.
Jake states that he is "above average height according the to 1940 census." The census does not ask for individuals' heights.
Columbia University where Kevin Cozner is employed has its own police department which quite highly rated. It would have been problematic for him to involve either Jake Peralta or even his own husband Captain Holt in any investigation without going the campus authorities first.
Officer Heather wears a commendation bar that is not issued by the NYPD.
Santiago is wearing 2 citation bars that are not issued by the NYPD. Also, NYPD regulations require that the American Flag bar be worn as the highest citation bar - something Santiago would have known.
Captain Holt wears his Commendation breast bar above his World Trade Center Breast Bar. When the WTC bar is worn, it is worn above all other medals, but below the American Flag bar.
Jake recalls the time he and Kevin were locked in a safe house together for 2 months and "watched every Nicolas Cage movie ever made." In the stinger for Safe House (2018), it was revealed that they did not watch every Nic Cage movie, as they did not watch Captain Corelli's Mandolin (2001) or Leaving Las Vegas (1995), two films which would have appealed to Kevin's sensibilities far more than the action film fare that Jake immersed him in.
Boethius and St. Augustine were very nearly contemporaries and a great deal of their philosophies anticipate one another.
Raymond Holt mistaking one for the other would not have been that serious of an error as even authors of the history of philosophy have done the same.
@7.30. At the bottom of the screen someone runs past.
When Kevin tells Holt that "any seat is fine", Holt replies "Someone put pepper on their eggs this morning." However in the episode "The Audit", when Amy suggested he could still mentor her if they met for breakfast and teach over eggs, his reply "Eggs for breakfast? You're farther behind than I thought" suggests that is an abomination in his book.