Crossovers.  1 A Dark Day is part one of a crossover with Chicago P.D. where an explosion occurs at Chicago Med, leading the fire and police departments to track down the culprits.  2 Nobody Touches Anything is part one of a crossover with Law & Order: Special Victims Unit and Chicago P.D. centered on a pedophile ring.
How long does alcohol stay in my system for a saliva test? Depends: Alcohol has an approximate detection time of 12-24 hrs,The detection time depends on the maximum level of blood alcohol content (BAC) which can vary. One serving of alcohol can be fully absorbed in the blood stream 30 min up to 2 hrs after intake. The body metabolizes aprox 0.25 oz per hour.
Breathalyzers detect alcohol in the blood within 24 hours of drinking and an ethyl glucuronide (saliva) test can detect traces of alcohol in the body up to 12 days after drinking. Hair follicle testing for alcohol is the most precise and can detect alcohol in your system three months after ingesting alcohol.