The Law & Order Universe was created by Dick Wolf starting with Law & Order. It contains three franchises, eighteen television series, and two television films. All crossovers between these series are considered canon. Other crossovers are non-canon.
Law & Order franchise[]
- Law & Order (1990) has seven in universe crossovers.
- Law & Order: Special Victims Unit (1999) has nine in universe crossovers.
- Law & Order: Criminal Intent (2001) has three in universe crossovers.
- Law & Order: Trial by Jury (2005) has two in universe crossovers.
- Paris enquêtes criminelles (2007)
- Law & Order: UK (2009)
- Law & Order: LA (2010)
- Law & Order: Organized Crime (2021)
- Law & Order: True Crime (2017)
Chicago franchise[]
- Chicago Fire (2012) has nine in universe crossovers.
- Chicago P.D. (2014) has nine in universe crossovers.
- Chicago Med (2015) has two in universe crossovers.
- Chicago Justice (2017) has two in universe crossovers.
FBI franchise[]
- FBI (2018) has three in universe crossovers.
- FBI: Most Wanted (2020) has two in universe crossovers.
- FBI: International (2021) has one in universe crossovers.
Other series[]
- Homicide: Life on the Street (1993) has three in universe crossovers. It was created by Paul Attanasio.
- New York Undercover (1994) has two in universe crossovers.
- Deadline (2000) has had no direct in universe crossovers, however its fictional New York Ledger appears in any series based in New York City.
- Conviction (2006) has one in universe crossover.
- In Plain Sight (2008) has one in universe crossover. It was created by David Maples.
Television films[]
- Exiled: A Law & Order Movie (November 8, 1998)
- Homicide: The Movie (February 13, 2000)
Reality series[]
- Arrest & Trial (2000)
- Crime & Punishment (2002)
Reality series are not part of the Westphall Universe.