In order to assist class action defense attorneys anticipate the type of cases against which they will have to defend, we provide weekly, unofficial summaries of the legal categories for new class action lawsuits filed in California state and federal courts in the Los Angeles, San Francisco, San Jose, Sacramento, San Diego, San Mateo, Oakland/Alameda and Orange County areas. We include only those categories that include 10% or more of the class action filings during the relevant timeframe. This report covers the time period from September 7 – September 13, 2007, during which time 39 new class action lawsuits were filed in these California state and federal courts. Labor law class action cases generally lead the list by a wide margin, and this past week was no exception with almost 2 out of every 3 new class actions falling into this category. In fact, employment class action cases proved to be the only category of cases to meet the 10% threshold. New labor class action cases led the list with 24 new lawsuits, representing 62% of the total number of new class actions filed.