"The initiative was sparked by complaints from residents weary of seeing tangled heaps of rubber and metal at corners like Smith and President streets, according to Officer Vincent Marrone, a community affairs officer with the 76th Precinct, which encompasses Carroll Gardens.Cops said they are in the investigatory phase of the crackdown, and will be canvassing the neighborhood in the coming days to find trouble spots. In the short term, education will be key, as the precinct will attempt to inform cyclists that it is illegal to lock their bikes to street signs."