**Q: What recent event has led to the detention of several people in Switzerland?**
A: Several people have been detained in connection with the suspected death of an individual using a new "suicide capsule."
**Q: Where in Switzerland did this incident take place?**
A: The incident occurred in northern Switzerland, where the police are investigating the situation.
**Q: What action has the police taken in response to the incident?**
A: The police have opened a criminal case related to the suspected death involving the suicide capsule.
**Q: What is a "suicide capsule"?**
A: A suicide capsule is a device designed to assist individuals in ending their own lives, often discussed in the context of euthanasia and assisted suicide.
**Q: Is there any information about the identity of the detained individuals?**
A: The article does not provide specific information about the identities of the detained individuals or their roles in the incident.