A second arrest has been made over the death of PC Andrew Duncan after he died from his injuries following a hit and run collision on Friday.
The Met have confirmed a woman has been arrested on suspicion of perverting the course of justice. She remains in custody at a South London police station.
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18 year old Shafiq Smith was charged early this morning with the murder of Omid Saidy
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Omid Saidy, 20, was knifed to death after asking a drug dealer and another man to leave the area, police say.