Los Angeles seizures provided by Los Angeles Police Department. Chicago seizures provided by Cook County Sheriff's Department and do not include Chicago Police Department seizures. New York seizures provided by New York Police Department. Arrestee Drug Abuse Monitor Program. Percent of arrestees testing positive for opiates.
Percentages represent average of male and female results.
Women consistently tested higher than men. To Top To Contents Table 14 . Most common importation method Courier Courier Courier Couriers commonly transport heroin by air to New York and Chicago, and by land to Los Angeles. While retailer groups often distribute more than one drug, individual dealers usually sell only heroin. To compete with high purity SA heroin, retailers are not cutting heroin from other sources as often.