The affected workers were given three months to file criminal complaints. On Wednesday, Zurich police confirmed that several complaints had been received, without giving an exact number.
Those who live in different cantons may have filed complaints with their local police. Prosecutors will now decide whether to lay charges of criminal negligence.
The event organiser said in June that none of the participants were forced to walk over hot coals and that it had waited for coals to cool to 500 degrees, which is lower than the 700 degrees normally considered safe for the activity.
Firewalking involves walking barefoot over a bed of hot embers or stones. It is practised in many parts of the world as a rite of passage or test of strength or courage.
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Switzerland's economy grew slightly at the start of 2024, with growth in the service sector contrasting with weak growth in industry.
Swiss employment rate rises in first quarter of 2023
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The number of women and foreign nationals in employment increased particularly strongly, the Federal Statistical Office said on Thursday.
Coercion still an issue in Swiss welfare system, report finds
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The rights of vulnerable people are still sometimes disregarded by the Swiss welfare system, a national research programme has found.
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Viola Amherd has expressed her “deep shock” at the assassination attempt on Slovakian Prime Minister Robert Fico on Wednesday.
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A man injured half a dozen people with knives, two of them seriously, before being arrested on Wednesday in northern Switzerland.
Switzerland to introduce flight passenger database
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Switzerland plans to introduce a flight passenger database to collect and process personal data in a bid to combat terrorism and serious crime.
Government plans to invest over CHF16bn in Swiss rail network
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The federal government intends to invest CHF16.4 billion ($18.1 billion) in railway infrastructure between 2025 and 2028, CHF2 billion more than for the current period.
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