illegal trial flights
The consquences for a non instructor undertaking Trial Flights is very serious indeed.
The Trial flight or Air Experience Flight is a recognised lesson within the PPL syllabus. The effect on the non-instructor is for him/her to be construed as an individual masquerading as an Instructor.
It matters not whether the student/passenger touched the controls or not. It is fraud, dangerous and highly illegal and worse for the non-instructor unlawful.
The result for one individual not too many years ago was not a fine plus costs, but prison! It is that serious.
You would do well by the individuals concerned to at least make them AWARE of what they could be letting themselves in for.