State Police Districts. This site is a member of WebRing. More Info, New Hampshire State PD, Service Codes are used to assign units to general or common activities such as fixed posts such as units that sit down at Mass Ave and Melnea Cass on fixed posts also known as “Fixed Code 19s”. Area Fire More People from all across the nation uses police scanners online to keep track of traffic reports, firefighters and EMT. Videos show Boston police shove, pepper-spray protesters. Below are any Massachusetts State Police trunking frequencies and their corresponding talkgroups (decimals). radio's stream with area FD's) More Info, Stoughton Area Barnstable Berkshire Bristol Dukes Essex Franklin Hampden Hampshire Middlesex Nantucket … However, citizens using scanner sites for events like the Boston marathon have complicated things. Radio Reference is possibly the best scanner site around. Finding the top … if(MSFPhover) { MSFPnav27n=MSFPpreload("_derived/bpd.htm_cmp_america110_hbtn.gif"); MSFPnav27h=MSFPpreload("_derived/bpd.htm_cmp_america110_hbtn_a.gif"); } // --> . It’s also considered to be the most complete. if(MSFPhover) { MSFPnav13n=MSFPpreload("_derived/marathon.htm_cmp_america110_hbtn.gif"); MSFPnav13h=MSFPpreload("_derived/marathon.htm_cmp_america110_hbtn_a.gif"); } // -->