department of justice is behind bars. reporter: julie, stunning indeed. this is a guy who is a well known figure in the law enforcement community. but tonight, he is facing 20 felony counts. right now, he remains here behind dollars, being held on $660,000 bail. to see if this individual was here. reporter: from being a lead investigator in a dangerous pipe bomb situation, to being the focus drug investigation. 49-year-old norman welsh has gone from top commander of the narcotics enforcement team to alleged criminal. he s looking at several felony counts. reporter: the state justice department says welsh conspired to sell the drugs with this man. 49-year-old chris butler. a private investigator, and owner of a pi firm. authorities served search warrants and his home. he has been a stellar police officer throughout his entire career. reporter: welsh s attorney says his client is very upset. we will meet these charges head on, and deal with them appropriately.
reflective of our agency as a whole, or our personnel. reporter: welsh has been with the state narcotics bureau. the big question tonight is how will his arrest impact all of those cases he has worked on. heather holmes, ktvu, channel 2 news. we asked about the potential fallout. he told us, it could be enormous, and welsh s credibility is coming under fire. in cases that are literally, five, six, seven years old. ten years ago, michael came to the defensive an oakland police officer, accused of being a rogue cop. none of the officers was found guilty, but still, hundreds of cases involving them were thrown out because of concerns about their credibility. 8:55 tonight in the 100 block of hunter street in east oakland. we learned three people were wounded. one of the victims is a woman. we heard reports she was shot in the back. all three were taken to highland hospital for treatment. we ve also learned police are looking for four or five people who got away in a veh