When Amy and Rosa are discussing Amy's urinary troubles, just after Amy has dismissed the idea of kicking someone (around 13:30), Rosa's hands are on her hips in the reverse shots but down by her sides in the forward shots. Throughout the first part of the scene, they were on her hips in all shots.
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.
Despite it being an attempted assassination of a politically exposed person no federal authorities are present during the investigation which would actually have the command and authority and Jake would not be making the decisions and giving the orders as depicted.
When the "Hot Dog man" is giving Jake false descriptions of the shooter, Jake says: "That sounds like the guy". The Police had not yet gotten any descriptions or further information on the shooter.
Amy said the pregnancy test didn't work because she drank 11 gallons of water. She only drank 6 liters, which is just over a gallon and a half.