The action, aimed at protecting students, covers hundreds of teachers who have been investigated by school officials or police for alleged misdeeds ranging from sexual abuse to excessive absenteeism.
Los Angeles schools Supt. John Deasy said the district will report all teachers accused of misconduct to the state credentialing commission in an effort to keep those who pose a risk to students out of the classroom.

Read more http://feeds.latimes.com/~r/latimes/news/local/~3/chy7vxiXR98/la-me-0223-substitute-teacher-20120223,0,7022693.story