Witnesses aged sixteen or over who are called to give evidence either at an investigative hearing or before courts and tribunals ruling on criminal, correctional or police matters receive an appearance allowance determined by the following formula:
I = 1.5 + (S x 4) in which:
I is the amount of the fixed allowance expressed in euros;
S is the minimum interprofessional growth wage as fixed on 1 January of the current year.
Witnesses who can prove that they have lost part of their income from their professional activity are also entitled to additional compensation calculated according to the formula I = S x D in which:
S is the minimum growth wage determined as above;
D is the hourly duration of the appearance, which may not exceed eight hours per working day.