A federal grand jury in San Diego has indicted two men linked to a Canadian company on racketeering and drug charges over allegations they helped import and distribute narcotics around the world through the sale of encrypted communications devices.

The U.S. Justice Department says the indictment alleges that devices from Canada-based Sky Global are designed to prevent law enforcement from monitoring the communications between members of transnational criminal organizations involved in drug trafficking and money laundering.

The indictment alleges that Sky Global installs sophisticated encryption software in cellphones that allow users to communicate with each other in a closed network through encrypted servers in Canada and France.

It alleges that Sky Global used the system to facilitate the importation, exportation, and distribution of heroin, cocaine and methamphetamine into Australia, Asia, Europe, and North America, including the United States and Canada.

The indictment also alleges the system was used to help launder the proceeds of drug trafficking and obstruct investigations.

The U.S. Justice Department says Jean-Francois Eap, Sky Global’s chief executive officer, and Thomas Herdman, a former distributor of the devices, are charged with conspiracy to violate the federal Racketeer Influenced and Corrupt Organizations Act and conspiracy to distribute controlled substances.