We have hand held scanners.
like these
You can get very cheap fakes that do not scan but most spend a few extra bucks and the magnetic strip is encoded with all of the information thats on the front of the id. They scan just fine.
There is a third type, and my personal favorite, has "stock" info encoded on the back. You will often see a group of guys from the same frat house all with the same state id and if you pay attention you will see that each id is encoded with the same info! They did a group buy and got a discount!
A list of some of the "fool proof" security features I have encountered faked over the last decade.
- Microprint
- Holograms
- UV and UV multi color
- UV pictures
- Silhouetted images
- Raised lettering
Those are off the top of my head. I don't think any state uses microchips as its too expensive.
It must be a multi million dollar business just for underage kids. Imagine the desire for a faked citizenship card. It may not be easy to fake but if there is a profit to made then it will be faked. This is true from car parts to paintings and there is no reason to think this would be exempt.