so today we're going to talk about the ethics of law enforcement, prevent ago boose of power -- preventing abuse of power. i wanted to read to you a letter to the editor that i happened to run across in the chronicle the other day when i was thinking about this panel. i just want to read it to you. it's entitled "betrayal of trust in the san francisco police department." my thoughts were just those of unbelief after reading your story "new video slap for san francisco cops." it is undeniable that our rights under search and seizure laws must be protected. but cops that blow cases by violating these rights should lose their jobs and be prosecuted themselves. i hope new chief greg suhr follows through on his promises to clean up the san francisco police department that betrays the trust put in it when it pulls stunts like this. so, what happens when those we think are protecting us from criminal activity become the criminals themselves? what is the mentality that causes this to happen? how much can a police department overcome such a betrayal of trust, public trust? so we're going to explore