Unless you're one very lucky Craigslist sting operation coordinator, if/when your bike goes missing in Brooklyn your chances of getting it back are nearly nil. But you never know, and it won't cost you anything except five minutes, so why not get an identification number etched onto your bike frame and a security decal applied to it on Friday at Greenpoint's 94th Precinct?
Yes, why not? Because it could possibly eventually become a requirement? Because next time the president visits and takes your bicycle you can go claim it before they detonate it? Because they might also be tracking devices that will facilitate the NYPD's increasingly predatory policing of cyclists? Don't be ridiculous!
No but really, there's a slim chance that your stolen bicycle could be recovered, and in that event this is the best way to make sure you get it back. Friday August 26th's registration session takes place at Greenpoint's 94th Precinct, 100 Meserole Street (between Manhattan Avenue and Lorimer Street) from 9am to 1pm. The NYPD's crime prevention site explains the process thusly:
Bicycle is marked with an identification number using an engraver. A decal is affixed to the bicycle, which is difficult to remove. In the event that it is removed "void" appears on what remains of the decal.