Abstract: From a first patrol unit, the first data are received for identifying a location of the first patrol unit. From the first patrol unit, second data are received for identifying a subject. The subject includes at least one of: a subject vehicle; and a subject person. A database is queried about the subject and, in response to the querying, a determination is made bout whether the subject is a likely threat. In response to determining that the subject is a likely threat, and in response to the first data, a predetermined number of second patrol units are identified that are most geographically proximate to the location of the first patrol unit, and a message is output to the predetermined number of second patrol units about: the subject; the likely threat; and the first patrol unit.

Abstract: Methods, systems, and apparatus include computer programs encoded on a computer-readable storage medium, including a method for providing information. The method includes receiving a prompt from a user operator associated with a first unit. The method further includes determining a location associated with the first unit. The method further includes responsive to the prompt, determining one or more second mobile units within a geographic area associated with the location. The method further includes outputting a communication to the one or more second mobile units. The method further includes enabling a direct communication link between the user operator and an operator associated with a respective one of the one or more second mobile units. The method further includes providing environment information to the one or more second mobile units based at least in part on the prompt.

Abstract: From a first patrol unit, first data are received for identifying a location of the first patrol unit. From the first patrol unit, second data are received for identifying a subject. The subject includes at least one of: a subject vehicle; and a subject person. A database is queried about the subject and, in response to the querying, a determination is made about whether the subject is a likely threat. In response to determining that the subject is a likely threat, and in response to the first data, a predetermined number of second patrol units are identified that are most geographically proximate to the location of the first patrol unit, and a message is output to the predetermined number of second patrol units about: the subject; the likely threat; and the first patrol unit.