i guess this could be fourfor ms. wu. what is the procedure for the san francisco police department and the d.a. and is a public? >> it is public. there are external and internal policies for bringing forward materials that would affect the credibility of witnesses i hate -- credibility of witnesses. from the crime lab scandal -- >> situation. situation. i will use the word situation. in particular, and it is all known to the public -- this man had a conviction out of san mateo we had not learned about. we could not cross-examine on that. and that was a problem. it was a problem immediately addressed. so, i talked to a lot of other g-8's offices to find out how -- d.a.'s offices throughout the state to find out how they dealt with this. i find that a lot of offices across the state rely on that type of relationship. given the situation occurred with the crime lab, we needed to absolutely do more, and what we did is create a policy where they did, and i think it may have been cheap gas than -- chief gaston at the time were

[applause] >> ms. wu, when your department, the district attorney's office discovers an office -- an officer has been untruthful or is abusing power, do you have a policy in place for reporting this? or is there just an understanding, or how does your office deal with this? >> i also think everyone for having me here today. i could not agree more with the panelists to spoke before me. i say this to young lawyers all the time in our office. all we are is our integrity. all we are is our ability to communicate and put forth evidence to juries, and we have to rely on that. we have to rely on integrity. it is difficult when these situations happen. i was really involved with the crime lab cases and the allegations against the criminals. i've been very involved in the allegations regarding some of these search and seizure issues, and i am just now becoming involved with the cases of potential theft. and all these are allegations. what is difficult, i think, for prosecutors in our office -- we find folks to be