I believe visible police presence does deter crime, especially crime of opportunity. What would be better is if we more regularly see police presence on bikes, walking downtown, even just 2 or 3 officers, than these useless blitz where they all line up for a photo op in front of the library. The sad part is the first won't make the news, will only be noticed by people actually going/living downtown, while the second, helps the suburbanites too scared to come downtown feel better about downtown. And our priorities clearly rest with the latter group.