The legislation is vague about how this will be accomplished, but the “impact assessment” it cites is not. The assessment makes clear that mandatory scanning of images & text, especially in encrypted data, is the only solution the Commission will consider.
The calls for detecting “grooming behavior”. If you wonder what that means, here is a brief description. Roughly it means developing new AI tools that can understand the content of textual conversations and can automatically report you to the police based on them.