A medical technology group in Hamburg allowed its employees to use ChatGPT and similar AI tools. The rules were published on the intranet. Employees were to open their own private accounts with the providers. The tools were not installed on company computers. The group works council went to court to stop the introduction. On 16 January 2024 the Hamburg Labor Court rejected all its applications. The employer had no access to the data and could not monitor how employees used the tools. In these summary proceedings, the court found that no right of co-determination of the works council had been violated.