He argued the law he was charged under did not even exist when the alleged conduct began — a clean, well-documented non-retroactivity argument. It failed because the requesting bureau showed the conduct itself continued for years after the law took effect, converting a strong legal argument about timing into a losing one about the wrong dates.
A precise argument, built on a real legal principle
Discovered to be the subject of an international arrest warrant only after his own arrest abroad during unrelated extradition proceedings, he built a careful case: the two criminal provisions underlying the charges had entered into force at a specific date, while the underlying facts were alleged to have occurred in the preceding one to two years. Prosecuting him under a law enacted after the relevant conduct, he argued, violated the principle against retroactive criminal punishment — a principle enshrined not only in the Universal Declaration but in the requesting country’s own constitution and criminal code.
The continuing-offence answer
The requesting bureau did not dispute the dates of the legislation. It disputed the premise that the conduct had ended before the law took effect. According to its account, he had left for a third country the year the alleged offending began and remained there conducting the same criminal activity for years afterward — well past the date the new provisions entered into force — before eventually relocating again.
- Where an offence is continuous rather than a single completed act, the relevant legal framework is not fixed by the date the conduct started, but extends to cover the period during which it persisted.
- A charge that might be invalid if the conduct had truly ended before the law existed becomes valid once the same conduct is shown to have continued well into the period the law was in force.
- The bureau supported this with witness testimony placing him in the third country throughout the relevant years, directly countering the timeline his own argument depended on.
The extradition refusal that still produced a correction
A separate country had in the meantime arrested him on the diffusion and then declined to extradite him, releasing him afterward. Consistent with the rest of this catalogue, that refusal did not by itself undermine the notice’s validity — but the Commission still ordered it recorded as an addendum to the file, the standard remedy that follows a refusal even where the underlying data survive review.
What this decision teaches
- A retroactivity argument stands or falls on the dates of the conduct, not just the dates of the law. Before relying on this argument, confirm precisely when the alleged conduct is actually said to have ended, not just when it is said to have begun.
- A continuing offence resets the clock for legal-timing purposes. Conduct that persists past a change in the law is generally judged under the law in force while it continued, not the law in force when it started.
- An extradition refusal is worth filing for the addendum even when it will not remove the underlying notice. The two outcomes are independent, and claiming the smaller remedy is still worthwhile.
Decision extract published by INTERPOL · catalogue reference ccf-2023-07 · 2023 · Diffusion · maintained subject to an update. Read the full extract (PDF). Source: interpol.int. Names, countries and dates are redacted in the published extract.
If you are considering a non-retroactivity argument, check carefully whether the conduct you are accused of is alleged to have continued past the date the law took effect. Send us the dates of the law and of the alleged conduct and we will tell you whether the argument actually holds up.
Retroactive laws and continuing offences
The law I am charged under did not exist when my conduct is said to have begun. Does that end the case?
Not necessarily. Where the alleged conduct is continuous and is shown to have persisted after the law took effect, the charge can still stand for the period covered by the new provisions.
Whose burden is it to show the conduct continued?
In practice, the requesting bureau typically has to produce specific evidence — such as witness testimony placing you in a particular location during the relevant years — to support a continuing-offence theory, and the Commission will examine whether that evidence is concrete.
If my extradition is later refused elsewhere, does that combine with a retroactivity argument to remove the notice?
The two are treated separately. A refusal typically results in an addendum to the file recording it, not in removal of an otherwise valid notice.
This article is for informational purposes only and does not constitute legal advice. For advice specific to your situation, please consult a qualified lawyer.