Duty of silence

What is duty of silence?

Duty of silence (Dutch: zwijgplicht) is, in BDSM, the standing rule that the submissive only speaks when spoken to. In plain Dutch the same word means something quite different: the duty not to pass on what you hear through your work, professional secrecy. One word, two rules that have nothing to do with each other.

What duty of silence looks like in practice

As a rule that is switched on, not as a moment that begins.

A common picture: the two of you have agreed that on a protocol evening you do not speak of your own accord. He pours, you say nothing. He asks whether the food was good, you answer, and after that the silence settles back into place. No clock is running, because the rule belongs to the evening the way the form of address belongs to it.

That is exactly the difference with a speech ban. That is an act with a beginning and an end: from now until after the meal there is no talking, full stop. Duty of silence is a habit within a form. In practice the two get used interchangeably, and that goes fine until one person means a time span and the other means an attitude.

A safeword or gesture falls outside the rule in both cases, and so does answering: that is exactly what the arrangement asks of you.

Where the word zwijgplicht comes from

From journalism, and someone was locked up over it.

The newspaper archive of the Royal Library gives 6,671 articles with this word, and before 3 June 1905 not a single one. On that day De locomotief in Semarang runs the lead article “Non Possumus!”, subtitle “Het Beroepsgeheim van den Journalist”. Editor-in-chief M. Vierhout was being held hostage because he refused to say who had sent him a piece about the mobilization. His defense, reprinted three days later in the Bataviaasch nieuwsblad: “Met zijn zwijgplicht dekt hij den inzender, ‘t geen zeggen wil dat hij het publiek dekt, het vrije woord in de practijk der samenleving waarborgt.”

That is how the word entered the Dutch language: as something you use to protect another person. It never lost that charge, and no dictionary meaning ever settled over it. The WNT treats zwijgplicht as a subentry under ZWIJGEN, and the Algemeen Nederlands Woordenboek carries an entry that by its own account holds no meaning yet: only that it is a compound of zwijgen and plicht, without a linking sound.

What zwijgplicht means in a profession

There it is not a habit but a criminal provision.

Article 88 of the Wet BIG obliges every practitioner of a registered profession to keep secret everything entrusted to them in that work “als geheim”. Article 3 names which professions those are, and psychotherapist is among them, between physician, pharmacist and midwife.

Breaking it is a crime. Article 272 of the Dutch Criminal Code puts up to a year in prison or a fourth-category fine on it, and expressly counts in a “vroeger ambt of beroep” too: whoever quits the profession keeps the duty. There is a right facing it, in article 218 of the Code of Criminal Procedure, which since 1926 has provided, in the spelling of the time, that such professionals may “verschoonen” themselves before the court.

Why people agree on this rule

Because a habit does something an order cannot.

A one-off order to keep quiet feels like an act: he says it, you do it, it is over. A standing rule feels like a relationship, and you notice it most strongly when nothing is happening.

• For the one who follows the rule the guessing falls away. Whether this is a good moment to say something is a question that is already answered.
• For the one who sets the rule paying attention becomes mandatory. Someone who only answers tells you nothing on their own, so you have to ask.

This rule preserves what lies between you, it solves none of it. Anyone who introduces it in a week when something needs talking out is buying silence instead of calm.

What duty of silence is not

“It is the same as a speech ban.” Almost, and the difference is in the time. A speech ban runs from one agreed moment to another and forbids the speaking itself. Duty of silence is on as long as the form is on, and leaves one door open: the answer to a question.

“Duty of silence means you may not talk to anyone about this.” This is the most dangerous confusion on this page, and it comes from plain Dutch. Anyone who reads the rule that way is asking not for protocol but for secrecy about the relationship itself. A partner who uses “zwijgplicht” to keep you away from a friend or a debrief is not agreeing on a form but cutting you off.

“A gigolo has a duty of silence.” No. What I promise you is discretion: an agreement between the two of us, which I keep. Duty of silence in the sense of article 88 belongs to healthcare, with a disciplinary board and article 272 behind it. Anyone who promises discretion and slaps the word zwijgplicht on it borrows authority that does not belong to the work.

What I see of it myself

I am Victor, a gigolo in Amsterdam, over twenty-five years in BDSM and trained as a psychotherapist. Of all the words on this list this is the only one whose two meanings I know both from the inside, and they resemble each other less than people think.

Women who ask for this rule almost never ask for silence. They ask for the calm of not having to work out when they are allowed to say something. That is a different request, and it is served better by one sentence from my side (“you answer, beyond that you need do nothing”) than by a strict-sounding arrangement.

And a practical point: keep asking. An evening where the other person only answers stands or falls with the quality of the questions, and that has become the harder role of the two.

What you agree on before you start

• Say whether you mean a standing rule or a speech ban of an hour, because those two ask something very different of you.
• Agree that the safeword and a gesture fall outside the rule, and practice that gesture once.
• Set down who is responsible for asking the questions, and agree how often a check-in comes, so that silence does not unnoticed last for hours.
• Do not agree to a duty of silence that is about your relationship instead of about the evening, not even when it is brought lovingly.
• Ask the question “what did you want to say at any point” in the debrief, because that answer rarely comes on its own.

Learn more about duty of silence

Within this list, high protocol describes the system this rule usually belongs to, speech ban explains the time-bound variant, and outing is about what it costs when someone passes on your kink without consent.

Beyond it, article 88 of the Wet BIG is four lines long and immediately clear about what a professional duty of secrecy covers, and the Vierhout case is complete in the newspaper archive of the Royal Library, with the reactions from the Dutch East Indies press alongside.

Where this fits on this site

If an evening with fixed forms of conduct appeals to you, but you have no wish to think up a rule system yourself, that is what the conversation beforehand is for. What it covers is at the BDSM date.

Sources

• Wet op de beroepen in de individuele gezondheidszorg, article 88. Dutch legislation, as of 1 January 2025. Provides the legal duty of secrecy for practitioners of a profession regulated under article 3, 34 or 36a regarding everything entrusted to them in that work “als geheim”, and via article 3 the list of registered professions in which psychotherapist stands next to physician, dentist, pharmacist, healthcare psychologist, physiotherapist, midwife and nurse. Both fragment anchors were found back in the retrieved html.
• Wetboek van Strafrecht, article 272. Dutch legislation, as of 1 July 2025. Provides that deliberately breaking a secret that someone must keep “uit hoofde van ambt, beroep of wettelijk voorschrift dan wel van vroeger ambt of beroep” is punished with up to a year in prison or a fourth-category fine, and that the crime against a specific person is prosecuted only on that person’s complaint. The mirror image is in article 218 of the Code of Criminal Procedure, which since 1926 has provided, in the spelling of the time, that those “uit hoofde van hun stand, hun beroep of hun ambt tot geheimhouding verplicht zijn” may excuse themselves before the court. Those two anchors were found back in the html too.
• Newspaper archive of the Royal Library (Delpher). Searched via the SRU service on the DDD_artikel collection on 10 August 2026, with a date filter and with the OCR of the oldest hits read word for word. Provides 6,671 articles with zwijgplicht against 11,648 with beroepsgeheim and 3,499 with geheimhoudingsplicht, the finding that the archive contains no article with this word before 3 June 1905, and the lead article “Non Possumus! Het Beroepsgeheim van den Journalist” in De locomotief of that day about the hostage-taking of editor-in-chief M. Vierhout. The verbatim sentence “Met zijn zwijgplicht dekt hij den inzender, ‘t geen zeggen wil dat hij het publiek dekt, het vrije woord in de practijk der samenleving waarborgt” is quoted from the reprint in the Bataviaasch nieuwsblad of 6 June 1905, because the OCR of De locomotief itself is illegible at that spot.
• Algemeen Nederlands Woordenboek and the Geïntegreerde Taalbank. Instituut voor de Nederlandse Taal, consulted 10 August 2026. Provides that the WNT gives exactly one hit, Zwijgplicht, treated under ZWIJGEN, and that the ANW carries an entry that by its own account has no meaning profile yet: only the grammatical data, including that it is a compound of the verb zwijgen and the noun plicht without a linking sound. So there is no dictionary meaning that pins down the scene meaning, and that is the claim the source supports here.
• Zwijgplicht. Dutch-language Wikipedia. Used here only for everyday language: the entry describes zwijgplicht as “de verplichting die mensen opgelegd wordt, of zelf op zich nemen, om te zwijgen” where they “niets verklappen of doorvertellen aan anderen”, with the omertà, Masonic lodges, enclosed monasteries and confidentiality contracts for television programs as examples. The scene rule does not appear in it.

Related terms

• Speech ban. The same silence, but with a beginning and an end, and with its own word history in prison.
• High protocol. The system of conduct rules that a duty of silence is usually a part of.
• Protocol. The overarching term for agreements that stand instead of being given each time.
• Submissive. The role this rule is usually placed on, with the research into who chooses it.
• House rules. Rules that hold not for two people but for a whole room.
• Contract. The document where speech rules most often end up in black and white.
• Discretion. The same subject as conduct instead of as duty, and what a gigolo really promises you.
• Outing. The other side of secrecy, namely what it costs when someone does pass on your kink.
• Debrief. Where you hear what was not said, and why that question has to be asked explicitly.