. >> sergeant yulanda williams is a 17-year veteran of the san francisco police department and president of officers for justice which represents african-american policemen and women. earlier this year she learned her name was mentioned in a series of racist text messages exchanged between fellow officers. >> i take it was not a personal attack on me but on all women of color. >> at first four officer were under investigation and now that number has grown to 14. >> i see this as a systemic issue and it's also the tip of the iceberg. i felt in my heart when they said it's just four i said if there's four, there's more. >> the public is starting to see what our clients have been telling us for many decades. >> matt gonzalez is a attorney for the san francisco public defenders office. >> there are officers that have racist predispositions and we have a culture within the department that will try to hide this information from the public because they fear that it will result in a change in their organization. >> gonzalez is also concerned about problems at the police department's crime lab. t