A licence is often required in order to organise games of chance, wagers, sporting bets etc.
Responsible body: Agency of the Interior, Tel:+49(0)40 42839 3586

A licence is required under § 33 d of the German Industrial Code (GewO) if you organise games of chance or games with a chance of winning.
Responsible body: Consumer Protection Agency OR The Point of Single Contact in Hamburg

A licence is required in accordance with § 33 i of the German Industrial Code (GewO) for commercial operation of a gaming arcade or similar business.
Responsible body: Consumer Protection Agency OR The Point of Single Contact in Hamburg

The installation of gaming machines with chances of winning and operation of a gaming arcade requires a licence in accordance with § 33c of the German Industrial Code (GewO).
Responsible body: Consumer Protection Agency OR The Point of Single Contact in Hamburg

Work as a geriatric nurse requires a licence in accordance with the § 1 of the Professions Geriatric Care Act (Altenpflegegesetz - AltPflG)
Requirements: statutory examination, trustworthiness, physical and mental fitness
Responsible body: Agency for Social, Family, Health and Consumer Protection