In any of the Law and Order shows, what does it say at the beginning of the show?

The narrator says, "In the criminal justice system, the people are represented by two separate yet equally important groups. The police who investigate crime and the district attorneys who prosecute the offenders. These are their stories."

http://lawandorder.wikia.com/wiki/Law_%26_Order

That's just the main "Law and Order" though. The spin-offs have slightly different opening lines.

Law and Order: Criminal Intent - "In New York City's war on crime, the worst criminal offenders are pursued by the detectives of the Major Case Squad. These are their stories."

https://en.wikipedia.org/wiki/Law_%26_Order:_Criminal_Intent


Law and Order: Special Victims Unit - "In the criminal justice system, sexually based offenses are considered especially heinous. In New York City, the dedicated detectives who investigate these vicious felonies are members of an elite squad known as the Special Victims Unit. These are their stories."

https://en.wikipedia.org/wiki/Law_and_Order_SVU


Law and Order: Trial By Jury - "In the criminal justice system, all defendants are innocent until proven guilty, either by confession, plea bargain, or trial by jury. This is one of those trials"

https://en.wikipedia.org/wiki/Law_%26_Order:_Trial_by_Jury

And one more, Law and Order UK - "In the criminal justice system, the people are represented by two separate yet equally important groups. The police who investigate crime, and the Crown Prosecutors who prosecute the offenders. These are their stories"

https://en.wikipedia.org/wiki/Law_%26_Order:_UK