Wal-Mart Stores Inc. on Tuesday said federal prosecutors were investigating whether it had improperly transported returned goods, ranging from hair spray to charcoal, that are deemed hazardous waste.
In a filing with the U.S. Securities and Exchange Commission, the world’s biggest retailer said it was informed by the U.S. Attorney’s Office in Los Angeles that it is the target of a criminal investigation into whether it violated the Resource Conservation and Recovery Act.
