Hansen, Kohls, Jones, Sommer & Jacob, LLP is a civil and criminal litigation firm. Based in Roseville, Calif., it conducts a practice emphasizing business, insurance litigation, professional liability, legal ethics counseling and appellate advocacy, to name a few. The firm also has provides ethics advice, counseling and malpractice avoidance advice to law firms throughout northern and central California. Hansen, Kohls, Jones, Sommer & Jacob, LLP provides service to the public, bench and bar. Members of the firm have responsibility in areas relating to judicial selection, the revamping of California's attorney discipline system, the creation of a professional malpractice plan for the 225,000 members of the State Bar of California and the rules governing practice before California's trial and appellate courts.