Guests and data privacy

Institution: Ørestad Gymnasium / High School
Target Audience: Students, Teachers, Parents
Type of Practice: Guideline 
Tool Use: Have a standard GDPR permission ready for guests, if the for instance are going to ask students questions 

Objective:
Often schools have guests, visitors, other teachers and parents and others. 

Brief Description:
Always insist, that guests at the school have GDPR permission ready, if for instance are going to ask students questions or take pictures.  

What do you need to replicate?
National Guide