Returning ISIS members pose potential chemical weapons risk to Canada: internal government documents

ISIS members who return to Canada from Syria and Iraq could have knowledge of chemical weapons and put it to use in a terrorist attack, according to internal government documents obtained by Global News.

The documents said the so-called Islamic State had repeatedly used chlorine and mustard gas in Syria and Iraq, raising the prospect of their use in Canada by returning foreign fighters.

“While the threat of a chemical attack in Canada is considered remote, there continues to be a potential risk of extremist travelers returning to Canada, having gained knowledge of the use of crude chemical weapons,” Public Safety Canada wrote.

The issue is one of the complexities facing Canadian police and security agencies preparing for the return of those who traveled to Syria and Iraq to join terrorist groups like ISIS and local Al Qaeda factions.

The federal government says about 100 extremists left Canada to join terror groups in the region. Another 60 have returned after having served in overseas terror groups.

Few of those returnees were with ISIS but given events on the ground in Iraq and Syria, authorities are anticipating more may come back in the next few months, including women and children.

The chances of a successful chemical weapons attack in Canada was considered extremely low due to “robust domestic controls” over the required materials and technology, the documents said.

“However, Daesh’s known use of commercially available toxic industrial chemicals in attacks is indicative of the group’s ability to use any means available,” said the documents, which used another term for ISIS.

The United States, United Kingdom and France launched missile strikes on Syrian facilities on April 14 in response to a chemical weapons attack in Douma a week earlier that killed dozens.

The coalition countries blamed Syria’s Russian-backed president, Bashar al-Assad, for the atrocity. Both chlorine and sarin were reportedly used in the regime attacks on the rebel-held city.

ISIS has also conducted chemical attacks. CNN, quoting U.S. officials, reported last year that ISIS had formed a “chemical weapons cell” in Syria to help defend its strongholds.

The possibility that ISIS foreign fighters could return to Canada with chemical weapons know-how was raised by federal officials in drafts of the 2017 Public Report on the Terrorist Threat to Canada.