This study examined the relationship between speed and accuracy in police calls for service, verbal behavior (listener, communicator), and communication structure (adjacency pairs, turn-taking). Forty participants were randomly assigned to either the role of reporter or police officer, and asked to communicate based on a scenario of snatching by using the mobile phone. The results showed that verbal behavior were positively correlated with accuracy and negatively correlated with speed. Communication structure were positively correlated with accuracy and not correlated with speed. However, adjacency pairs were positively related with speed accuracy. The way of intervention to facilitate forming adjacency pairs was discussed.