NBC officially cancelled Law and Order Los Angeles as of May 2011.
They have been announcing changes in cast but have not yet posted the start date for the next season (posted 16 Feb 2011).
I'm guessing you mean the TV show 'Law & Order: Los Angeles'. It still hasn't returned from the holiday break. A release date hasn't been announced, probably due to the fact that they have been changing up the cast quite a bit. The link below will post a start date as soon as it is scheduled.
Law and Order Los Angeles - 2010 Pasadena 1-5 is rated/received certificates of: Netherlands:9
Law and Order Los Angeles - 2010 Reseda 1-13 is rated/received certificates of: Netherlands:9
Law and Order Los Angeles - 2010 Westwood 1-22 is rated/received certificates of: Netherlands:9
Yes, "Law & Order," which premiered on NBC during the 1990-91 season, has been cancelled by the network after 20 seasons. But the Peacock Network is adding a new series next fall, titled "Law & Order: Los Angeles." NBC also has renewed "Law & Order: SVU" for another season.
To date, all the US versions of Law and Order have taken place and been filmed in New York City. As of September 2010, a new version begins which takes place in Los Angeles.
Law and Order Los Angeles - 2010 Playa Vista 1-8 is rated/received certificates of: Netherlands:9
Law and Order Los Angeles - 2010 East Pasadena 1-11 is rated/received certificates of: Netherlands:9
Law and Order Los Angeles - 2010 Runyon Canyon 1-14 is rated/received certificates of: Netherlands:9
Law and Order Los Angeles - 2010 Silver Lake 1-10 is rated/received certificates of: Netherlands:9
Law and Order Los Angeles - 2010 Plummer Park 1-18 is rated/received certificates of: Netherlands:9
Law and Order Los Angeles - 2010 Angel's Knoll 1-17 is rated/received certificates of: Netherlands:9