Expertiser: To evaluate, appraise or assess.
As seen in: « Le procès du juge à la retraite Jacques Delisle, accusé du meurtre prémédité de sa femme, se poursuit ce matin, avec le contre-interrogatoire du technicien qui a expertisé la scène. »
Translation: (“The trial of retired judge Jacques Delisle, accused of the premeditated murder of his wife, continues this morning with the cross-examination of the technician who assessed the scene.”)
http://www.journaldemontreal.com/2012/05/09/contre-interrogatoire-ce-matin