How could one be informed of an accusation of child pornography and what would this look like?

Question

TL;DR;

I keep getting fake E-Mails from "the federal crime police" with attachments like in the image below, where I'm accused of child pornography and exhibitionism. I don't know what the spammers intend with these mails, as there's no link to click or something (and hopefully nobody believes @gmail.com is a reasonable address for a state attorney).

But this brought me to this question: How would a real letter about an accusation look like? And could that be delivered by E-Mail? How would I be informed if I really committed any (internet) crime?

About the Text

Obviously, this "Einladung" (invitation) is fake. The german text is obviously AI-generated and thus full of nonsense: It attempts to quote several sections of the swiss criminal code, but fails seriously (the quoted text doesn't exist in the law, and the articles with the provided numbers contain nothing even close to what is quoted, so it's unlikely that this is just bad translation). Then it says I'm accused of "Erregung öffentlichen Ärgernisses" (Indecent Exposure) which is just a misdemeanor (e.g. walking around in public naked), by committing (in red print) child pornography, pedophilia, exhibitionism and cyber pornography. Completely illogical.

The only things right in the letter is that the state attorney of Geneva is named Olivier Jornot and the design of the logo of the swiss confederation in the top left corner (although even that is questionable, as an investigation by the state of geneva probably wouldn't carry the logo of the federation nor the signature of the director of the federal police).

Near the end, it says that if I'm not providing an identity document to the given e-mail (again, in red), the sender will request an arrest warrant against me from the state attorney. They just sent me a letter, so they know my address - at least in a reasonable world!

Answer 1

Vorladung (Subpoena)

First, you'd usually get a Vorladung (subpoena), typically physical and on paper ("dead tree shaped"), because that is very easy to verify has reached your address, fulfils the requirements of StPO 86, and thus makes you responsible to follow the mandate to show up. Googling for one, I found this authentic one from 2002, among many others:

Notice the following:

1. It's dead tree matter, all black and white, no color but for pen or stamped seals. Also, typically it's a laser or toner print.
2. It has your physical address, here blacked out.
3. It names your real name
4. It names the place of the investigating police station, including phone numbers and all
5. It names the alleged crime with just enough specificity
6. It names a place and time when you shall be at the station
7. It is signed
8. It is fairly short, naming what you can or can't do
9. It does not name any paragraphs. The police just investigates, and then will inform the district attorney.

About the fake:

Notice the following:

1. Much too much red text. Courts at best have colored seals, crests and signatures.
2. To even be allowed to send you such per e-mail, you need to agree (by signing dead tree matter) first, and it needs to be digitally signed, as required by Art. 86 StPO.

• this practically makes most, if not all, subpoena per e-mail invalid.

3. The mail was allegedly sent by a leading officer, but those do management, not investigations. Anyone writing a subpoena is in the lower to mid-ranking groups.
4. Gmail? No. @fedpol.admin.ch is the official domain of the federal police, The mail from the Opener can be reported to BACS - and the BACS updated their reminder on such just in april this year.

Answer 2

united-states

How would a real letter about an accusation look like? And could that be delivered by E-Mail? How would I be informed if I really committed any (internet) crime?

In the U.S., real law enforcement officials wouldn't send you an e-mail accusation, and probably wouldn't even send you a subpoena.

Instead, they might try to figure out your "in real life" identity and address with conversation by e-mail that was specifically designed not to tip you off to the accusation or their law enforcement connection. They might also issue a subpoena to your internet service provider in order to attempt to secure this information.

Then, once law enforcement figured out who you were, and where you were located, to a level of confidence sufficient to constitute probable cause, they'd obtain an arrest warrant (which wouldn't be disclosed to you in advance and would probably be under seal until you were arrested) and would come and arrest you without warning. Usually a search warrant allowing them to search your papers and computers to look for more evidence linking you to the alleged crime would be issued at the same time.

They wouldn't want to tip you off to the accusation in order to prevent you from trying to flee or to destroy evidence of the crime before you could be arrested.