Olivia Benson still uses her old desk, although she has got Captain Donald Cragen's room in the previous episode.
Alana De La Garza reprises her role as Connie Rubirosa from the original Law & Order
This is yet another episode that was teased as "ripped from the headlines". The events are largely based upon an actual scandal that took place in Wilkes-Barre, Pennsylvania. Corrupt judicial officials forced underage offenders into ridiculously long sentences to be served at a for profit juvenile detention center owned by said corrupt officials. A popular documentary film, Kids for Cash (2013), was released just a few months prior to the original air date.
To "Seagull" someone is when a group of two or more men, stumble upon a drunk or otherwise incapacitated female and descend upon her in order to sexually assault or rape her. Much like how seagulls flock and dive to the ground for scraps of food.