Business Recovery:

Products and solutions to help your business move forward.

Get Started


Food & Bev

Food Terrorism and Intentional Adulteration

Grainger Editorial Staff

An act of terrorism directed at the food supply could be devastating, and the industry has a legal and moral responsibility to safeguard consumers. The FSMA Final Rule on Intentional Adulteration was written with the explicit goal of preventing acts of terror.

The new law codifies producers’ obligation to develop a food defense plan to deter potential attacks. Plants will need to install security equipment, erect physical barriers, and implement recall plans in preparation for the aftermath of a potential act of sabotage.

Thankfully, we have seen very few past terrorist attacks on the food supply. But the 1978 poisoning of Jaffa oranges in Europe carries three key lessons for producers developing their food safety plan. How could the industry have better prepared for the attack, when a lone Palestinian terrorist injected elemental mercury into imported oranges?

The Damage Is Discovered

The poisoning plot came to light when a Dutch child discovered a pea-sized slug of elemental mercury beneath the rind of an orange he was peeling. The child and four of his brothers were immediately taken to the local hospital, where their stomachs were pumped to remove the poison. Fortunately, all were discharged later that day unharmed.

The next day, a shopper discovered another poisoned orange in a market in West Germany, and a policeman was sickened after eating a poisoned orange. Shopkeepers soon discovered tainted produce in Holland, Sweden, Denmark, and Britain. Stores across Europe began pulling oranges from their shelves. Four additional victims were treated for mercury poisoning in West Germany over the following week. Ultimately, 31 poisoned oranges were found in six nations.

The same day the Dutch children were hospitalized, 18 governments across Europe and the Middle East received a letter claiming responsibility for the attack in the name of the Arab Revolutionary Army, a pro-Palestine terror group that had assassinated an Emirati minister the previous year.  

The letter claimed that thousands of Jaffa oranges had been poisoned by Palestinian workers in Israel’s orchards, raising fears that European authorities had only discovered the first cases in a wave of poisoned fruit. The letter’s demands were vague, claiming the attacks would continue until Europe ended its “political, economical and military support of the Zionist regime.”

The Investigation

Authorities were immediately skeptical of the letter’s claims. First, the Arab Revolutionary Army was thought to be a small group of radicals, not capable of coordinating a widespread conspiracy among agricultural workers. Second, the poisoned oranges spoiled rapidly, with large rotten spots appearing where the mercury injection had punctured the fruit’s protective rind. Had the oranges been poisoned in Israel, they would have been thoroughly rotten when they arrived in Europe.

Instead, the attack seemed most likely to have been carried out by a single terrorist at a produce packing facility in the port city of Rotterdam. Notably, not all of the poisoned oranges originated in Israel—several had come from Spanish orchards. Authorities believed that the oranges had probably been injected while sitting in a bulk storage container prior to being packaged for retail sale.

Fortunately, the attack seemed designed to generate publicity, not human carnage. Mercury is a notorious poison, but it is not very potent in its elemental form—almost all acute mercury poisoning cases come from the ingestion of bioavailable organic mercury compounds, like the methylmercury found in some seafood. Elemental mercury is also quite easy to spot—it is a shiny liquid metal at room temperature, and is not readily absorbed by the flesh of the fruit. Ultimately, no one suffered lasting harm as a result of eating a poisoned orange.

The terrorist’s motives seemed to align with the ransom letter’s claims—to disrupt the Israeli produce industry, which was the nation’s largest exporter at the time of the attacks. The poisoning also discredited Palestinian organizations that had disavowed attacks against civilians.

Investigators were ultimately unable to identify a suspect or bring charges related to the attack. The lack of leads in the case suggests that the terrorist acted alone, and likely had no formal connections or communication with any Palestinian terror group. Police believe it is possible that the perpetrator was a Dutch citizen motivated by Marxist or anti-zionist philosophies.

Lessons from the Attack

Although the attack caused limited human damage, it demonstrates three key challenges in defending the food supply.

  • Physical security matters: The terrorist’s identity is unknown, but he was able to enter the packing facility and tamper with the oranges unnoticed. Had the produce warehouse been properly secured, and the fruit kept inside sealed, tamper-evident containers, it is unlikely that the attack could have succeeded.
  • Build a Defensive Culture: None of the facility’s staff noticed the attack. The terrorist likely entered the facility unchallenged, and no one inside questioned why he was handling the product. Facilities should positively identify their workers and approved visitors, and staff should be trained to identify and report suspicious activity.
  • Maintain Lot Traceability: In the attack’s aftermath, grocers across the continent discarded their oranges and other fresh produce, unable to vouch for their safety. Modern supply chains could spread tainted products around the world overnight, and it is vital that producers be able to mount a rapid and thorough recall in the event of a terrorist attack.

It’s a sad fact that production facilities must be prepared for a terrorist attack. But a solid food defense plan can help secure the nation’s consumers against those who would do us harm.


The information contained in this article is intended for general information purposes only and is based on information available as of the initial date of publication. No representation is made that the information or references are complete or remain current. This article is not a substitute for review of current applicable government regulations, industry standards, or other standards specific to your business and/or activities and should not be construed as legal advice or opinion. Readers with specific questions should refer to the applicable standards or consult with an attorney.


Get more great content like this sent to your inbox.