IntermediateUpdated 2026/10/22

Everyone Opposes Drug Trafficking — So Why Does Counternarcotics Cooperation Still Break Down?

Because every link in drug control has to be enforced by another country’s customs, police and courts — and asking another state to enforce on your behalf is diplomacy. A shared interest makes cooperation possible; it does not insulate it from other disputes. Whoever holds the tools for a given link holds the leverage.

Read this first: You Never Sold to Them — So Why Do the Sanctions Still Reach You?

The first two conventions govern substances, the third governs flows — and every one is enforced by states themselves

Convention	What it covers	Main tools	Where it shows up today
1961 Single Convention on Narcotic DrugsAmended by the 1972 Protocol	Narcotic drugs: opiates, coca, cannabis and their derivatives; fentanyl is also scheduled.	Graded schedules, limited to medical and scientific use — while keeping that supply available.	The basis for controls on Afghan poppy and opioids; fentanyl’s legitimate status as a painkiller also rests here.
1971 Convention on Psychotropic Substances	Synthetic psychotropics: amphetamine-type stimulants, hallucinogens, sedatives.	Graded schedules, with prescription and import–export controls.	The legal basis for controlling methamphetamine — the category behind Southeast Asia’s record seizures.
1988 Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances	The flows themselves: criminalises trafficking and money laundering, and controls the precursor chemicals synthetic drugs need.	Precursor controls, extradition, mutual legal assistance, confiscation of proceeds.	Export licensing of fentanyl precursors and cross-border money tracing — and the one most dependent on other states’ cooperation.

Side by side, the division of labour is clear: the 1961 and 1971 conventions decide which substances are controlled and what they may be used for; only the 1988 convention brings trafficking, money laundering and precursor chemicals into treaty law. The core of today’s fentanyl bargaining — chemical export licences and cross-border money — belongs to the third.

None of the three has an enforcement body of its own. The amber cell in the last column (the 1988 convention) is where cooperation depends most on asking another state — and where it is most exposed to unrelated disputes.

Source: Impactful Creative, compiled from the texts of the 1961 Single Convention, the 1971 Convention on Psychotropic Substances and the 1988 Convention against Illicit Traffic

Where do the international rules on drugs come from?

Mainly from three UN conventions. The 1961 Single Convention on Narcotic Drugs covers narcotics such as opiates, coca and cannabis — fentanyl is listed in its schedules too. The 1971 Convention on Psychotropic Substances covers synthetic drugs such as amphetamine-type stimulants, hallucinogens and sedatives. The 1988 Convention against Illicit Traffic criminalises trafficking and money laundering, and sets up the control of precursor chemicals, extradition and mutual legal assistance.

The three are often misread as simple prohibitions. They also require that controlled substances remain available for medical and scientific use — morphine and fentanyl are themselves legitimate painkillers. The aim is to keep them inside prescriptions and hospitals, not to make them disappear.

More importantly, the conventions have no police of their own. States promise to legislate and enforce at home; what is called international cooperation is in practice one state making requests of another: inspect this shipment, hand over this person, provide the records for this account.

If everyone opposes drug trafficking, why does cooperation still break down?

Because “please cooperate” runs into sovereignty. Sharing intelligence, handing over suspects, accepting outside verification — each brings another state’s demands into your own legal process. Governments agree on fighting trafficking; they do not necessarily agree on who bears the main responsibility, how much data to share, or how much outside oversight to accept.

That makes counternarcotics cooperation something that can be paused. In August 2022, after then-Speaker Nancy Pelosi visited Taiwan, suspending China–US counternarcotics cooperation was one of eight countermeasures Beijing announced. Cooperation resumed only after the two leaders met in November 2023, and a working group was launched in January 2024.

The episode makes one point: a shared interest does not turn itself into stable cooperation. The switch can be pressed in arenas that have nothing to do with drugs — and once it can be pressed, it is leverage.

Why focus on chemicals rather than the drugs themselves?

Because fentanyl and methamphetamine are synthesised. They need no poppy fields or coca plantations — they need precursor chemicals, most of which also have legitimate industrial and pharmaceutical uses. The same drum of feedstock is ordinary business when sold to a drugmaker and the top of a trafficking chain when sold to a clandestine lab. It is the same shape of problem as dual-use goods.

So the controls look a lot like export controls: lists, licences, end-use checks. Since 10 November 2025, China has required licences for exports of 13 fentanyl precursors to the United States, Canada and Mexico; the list was widened twice in 2026, in May and September, to 18.

But chemical supply chains move. A US Treasury sanctions announcement in April 2026 alleged cooperation between Indian chemical suppliers, Latin American intermediaries and Mexican drug-making networks — when one source tightens, another may fill the gap. A sanctions announcement is Washington’s allegation, not a criminal conviction.

The further upstream, the more the tools sit in someone else’s hands — only treatment is fully your own

Producing and exporting precursor chemicalsHeld by the exporting state
The tools are export licences and control lists. China began licensing exports of 13 fentanyl precursors to North America in November 2025 and widened the list to 18 in 2026 — consumer states can negotiate this layer, not run it.
Brokers, shipping and moneyUnilateral pressure, foreign enforcement
Sanctions can be declared unilaterally — the US Treasury named Indian chemical suppliers and Latin American intermediaries in April 2026. But they freeze only assets that touch the dollar system; inspecting cargo and arresting people still takes the other side’s customs and courts. And a sanctions notice is an allegation, not a conviction.
Synthesis (clandestine labs)Held by the producing state
Raids, dismantling and extradition are carried out by the state where the lab sits. The extradition and mutual legal assistance the 1988 convention provides are requests, not orders.
Markets and usersFully in the consumer state’s hands
Treatment, overdose response and harm reduction need no one else’s cooperation. In June 2026 the WHO for the first time invited methadone, buprenorphine and naloxone to apply for prequalification — yet this layer usually queues behind border interdiction.

Can act aloneUnilateral pressure, foreign enforcementTools held by another state

Top to bottom runs upstream to downstream. Shading does not mean how well a layer is governed but whether a consumer state can act on its own: solid means it can, light means it can apply pressure unilaterally but relies on others to enforce, dashed means the tools sit entirely with another state.

This is why drugs enter diplomatic bargaining: on the two upstream layers a consumer state can only ask or pressure. It is also why seizure figures mislead on their own — they measure a middle layer, and the results of the bottom layer never show up in seizure statistics.

Source: Impactful Creative, compiled from the Associated Press reporting (China’s precursor export licensing), US Treasury sanctions notice, 1988 convention text and WHO announcement cited in this explainer

Do tariffs work as a way to force another country to act on drugs?

What a tariff can do is raise the economic cost to another government in exchange for policy commitments — classic economic coercion: using trade as leverage for concessions on a non-economic issue. In 2025 the United States tied tariffs on China to its assessment of Beijing’s counternarcotics cooperation, raising the rate from 10% to 20%; after the Busan meeting at the end of October it cut the rate back to 10%, and China pledged to stop shipping designated chemicals to North America.

What a tariff cannot do is seize shipments, gather evidence, prosecute or trace money — that still takes enforcement agencies. And the lever has legal limits of its own: on 20 February 2026 the US Supreme Court ruled that the International Emergency Economic Powers Act does not authorise the president to impose tariffs, and the fentanyl-justified duties stopped being collected on 24 February.

Tellingly, Beijing’s licensing list kept growing after the tariff ended. Diplomatic leverage and implementation are two lines that can move separately, and they should be judged separately: what commitments the pressure bought, and whether those commitments reduced real harm.

So how do you tell whether drug policy is working?

Start by accepting that no single number answers it. UNODC estimated that Afghan poppy cultivation fell by about 95% in 2023, but that measures one part of production; it rebounded about 19% in 2024 and fell again to roughly 10,200 hectares in 2025, and whether the ban holds depends on whether farmers have other income.

Seizures are the same. East and Southeast Asia seized about 349 tonnes of methamphetamine in 2025, up 48% — which may mean stronger enforcement, or larger supply. Seizures are not output.

A fuller judgement looks at once at the price and availability of illicit drugs, the money and violence of criminal groups, overdose deaths, and whether treatment reaches the people who need it. That last item usually comes after border interdiction in the queue, yet it is the one thing a consumer country can do without relying on anyone else: in June 2026 the WHO for the first time invited manufacturers of medicines such as methadone, buprenorphine and naloxone to apply for prequalification, to widen access to quality-assured treatment.

For companies the implication is direct. Chemical, pharmaceutical and logistics firms face not just regulation but a chain of licences and sanctions that moves with diplomacy. Who the customer is, and where the goods finally go, is shifting from a compliance detail to the geopolitical risk itself.

Terms used here

Economic Coercion — Using trade, investment, or market access as leverage to force concessions on non-economic issues. The signature methods are deliberately deniable: quarantine standards abruptly tightened, customs procedures inexplicably slowed, tour groups cancelled — none formally acknowledged as retaliation. That deniability is the design; it denies the target a justiciable dispute at the WTO or elsewhere.
Export Controls — Legal instruments restricting the transfer of specified technology, products, or services to specified recipients on national security grounds. The defining feature of modern export controls is extraterritorial reach: if a product contains controlled technology, the rules may bind even when manufacture and sale occur entirely outside the controlling state. Control list updates therefore become compliance events that multinationals must track line by line, not a single-market regulatory matter.
Dual-use — Technology, products, or know-how with both civilian and military applications. Dual-use character complicates export control determinations: whether the same chip, algorithm, or drawing is controlled depends on end use and end user — neither of which is typically visible to the exporter. Compliance burden accordingly shifts from product classification to customer due diligence.