56.305.  Judicial paroles — duties (third and fourth class counties). — The prosecuting attorney in counties of the third and fourth classes shall attend all hearings and applications for judicial paroles and investigate all applications for judicial paroles, make a complete investigation of all the facts and circumstances surrounding the applicant, his home life, family and business, make a report of his findings thereon to the circuit judge and make such recommendation as he deems necessary and advisable to the circuit judge.