Reuters reported San Francisco City Attorney Dennis Herrera yesterday subpoenaed Uber Technologies Inc. and Lyft Inc. to turn over records relating to how the ride-hailing companies classify drivers, as well as driver wages, healthcare and other benefits, the latest demand in a year-long investigation. Herrera is seeking evidence to determine whether Uber and Lyft are in compliance with a recent California Supreme Court decision that made it more difficult to classify workers as independent contractors.