B’ Spokes: Hit and runs make up ~20% of cyclists fatalities nation wide and in Maryland it seems too little is done to bring these people to justice. Even if you can identify the vehicle you can have an up hill battle if you can’t ID the driver. Maybe this device will help, a bit pricey but I do like the thought processes behind it.
https://mobile.theverge.com/2013/2/25/4029248/helmet-of-justice-uses-cameras-as-a-black-box-for-bicyclists
Biking in Baltimore