Final concert with François Dumont who will perform on Sunday August 29 at 22.00 at the Plaza de la Cartoixa in Valldemossa.
The prosecutor believes the requirement would be disproportionate in terms of personal privacy.
Some 300 instances of this fraud form part of the investigation.
"This measure, after the pandemic and Brexit, has become the most preferred option for most international clients..."
Mallorca's most expensive property is for sale at 26.5 million euros.
Given the available doses, herd immunity would be achievable next month.
The Balearic tourism minister says that synergies with other sectors need developing.
Use of the certificate would have sought to "force citizens to be vaccinated".
The incident occurred just before midnight on Wednesday.
"Video images uploaded to the internet by an Afghan journalist showed a pile of bloodsoaked bodies"
"Move would be welcomed by local tourist industry..."