Anyone thinking about enabling further crowdsourced investigative work would do well to read that thread [1] with an eye to how quickly it got out of hand.

In my opinion...

Efforts to help with this should focus on helping people to submit any data and information with relevant context they have in a consistent format to the relevant authorities, nothing more.

1: http://www.reddit.com/r/boston/comments/1cf5wp/2013_boston_m...