. >> reporter: today oakland police antechp announced the start of a new partnership. extra chp officers will work overtime. >> a focus on areas that are having the highest crime problem. >> reporter: the detames about exactly how many officer will work and who will pay for their overtime is still not known. >> we're still working out all the details for funding. >> reporter: the chp says they've done this type of partnership with oakland police before. we'll have the details on that program and how well it worked coming up at 6:00. >> an oakland high school was locked down while police searched nearby for an armed suspect. it was placed on lockdown around 11:30. the school reopened about an hour later when police arrested a man not far from the campus. >> a oakland police announced two arrests. investigators say they arrest add 25-year-old stockton man in connection with a rock throwing incident. the officer wasn't hurt. the second arrest involved a protester who was tarkenton custody for allegedly obstructing an officer and for possession of drugs. police estimated l