The organizers of these dialogues have promoted them as a starting point for action and change. And it’s certainly legitimate to view the process of listening and trying to understand different perspectives as a first step in helping to craft better policing practices. But the dialogue could also be viewed as an end in itself. The mere fact that people can engage in reflective communication about a divisive issue is what brings about change. By participating in these kinds of dialogues, we have an opportunity to gain some appreciation of the challenges facing police officers. And police officers have an opportunity to gain a better understanding of how they can be viewed sometimes as protectors and sometimes as threats to the community. Biases can be exposed; historical perspectives can be shared. Just by sitting around tables and talking with random people of different views, we may change more attitudes than can happen when opposing factions only shout at and confront each other.
(But see my post on a black lives matter protest I witnessed this summer, where I argued that carefully-staged confrontations can also be effective in changing attitudes. Protest marches may be needed sometimes to call attention to an issue, but constructive dialogue is also needed to help resolve conflict.)