A Target store employee and three Cotati residents were arrested Monday in connection with an alleged counterfeit money ring, Santa Rosa police said.Danna Anderson, 18, of Santa Rosa, is suspected of accepting counterfeit $20 and $100 bills from three men who purchased electronic merchandise at the Target store and then returned the items for cash at other Bay Area Target stores,Sgt. Mike Lazzarini said.The investigation began Aug. 1 when security personnel at the Target store in the Santa Rosa Marketplace noticed Anderson was receiving a disproportionate number of counterfeit $100 and $20 bills at her register, Lazzarini said.Santa Rosa police monitored the transactions over the past two weeks and linked Anderson to three Cotati men who passed $4,000 in counterfeit bills, Lazzarini said.Detectives found counterfeit currency when they served search warrants Monday at two homes in Cotati and one in Santa Rosa, Lazzarini said. All four suspects were arrested. Anderson was booked into Sonoma County jail on charges of conspiracy, being an accessory and embezzlement. Isaiah Harris, 30, of Cotati, was booked on suspicion of possessing counterfeit bills and conspiracy.Jacob Allred, 19, of Santa Rosa was booked for passing counterfeit money, burglary, grand theft and conspiracy. The fourth suspect, Jared Allison, 24, of Cotati, was booked on charges of making or passing counterfeit money, burglary, grand theft and conspiracy.U.S. Secret Service agents served the search warrants with Santa Rosa police, but federal charges are not being sought, Lazzarini said.