Discharging firearms or missiles within or at building or dwelling house; penalty. Strategic Fairfax Criminal Defense Lawyers Defending Those Charged With Family Violence Offenses.Working with an experienced criminal defense attorney will give you the best possible chance of obtaining a favorable result. The original Complaint must be filed with the Civil Intake Section located on the 3rd floor of the Fairfax County Courthouse. Assault charges can lead to severe penalties and long-term consequences. If you have been charged, call a Fairfax County assault lawyer today. Experienced Manassas Aggravated Assault Defense Lawyer. For a free consultation with an experienced criminal defense attorney in Leesburg, contact Simms Showers, LLP, Attorneys at Law. Discharging firearms or missiles within or at building or dwelling house; penalty. Most shotguns are not included in the term assault firearm.