"To commit the act" means to actually do or perform a particular action, usually referring to something that is against the law or morally wrong. Full definition
While a person who commits an act of violence may be acting with aggression, a person with an aggressive nature will not necessarily engage in violent acts. (goodtherapy.org)
While auto insurance fraud is nothing new, the rise of the number of people committing these acts is attributed to the troubled economy brought about by the recent recession. (autoquotenow.com)