DURING a sting operation a female Constable attached to the Traffic Section at Brickdam was placed under close arrest after ranks from the Criminal Investigations Department (CID) caught her red-handed demanding a bribe from a motorist in relation to a traffic matter.Police reported that the Constable was on Monday caught in a sting operation by ranks from CID Headquarters after she demanded a sum of money from a motorist to forgo prosecution in relation to a traffic offence.