Code violation, venting basement window help!!!

[Max Bonds]

Hi all,  Just joined the forum,  I've been looking online trying to find some information on how to deal with a situation that's preventing me from passing my u and o inspection,  the problem is, or problems are two basement windows that have been boarded up with 3/4 plywood.  The property is located in Norristown Pa,  and in a compromised area in terms of security.  I did not mess with it,  because in my initial u and o inspection I was not told that it would be a problem. I understand the necessity of ventilation in the basement,  However I appreciate the security that the non functioning windows afford me.  That being said,  the windows behind the plywood cover are functioning casement windows,  but because they are located on the street and would provide direct access to the property I feel they are too easily breached for opportunists in the area.  is there a way i can adequately vent these windows while keeping the plywood partially intact.  was thinking that perhaps,  I could put some small vents in the plywood that would be too narrow for someone to fit through,  this way with the windows inside open,  it would have access to fresh air while still keeping the property secure.  Looking for solutions more affordable that glass block with vents or wrought iron bars.  thanks for the help any and all solutions appreciated!