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Ambulance ServicesInfo617-284-8300Dept of Public Health
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Detective Agencies978-538-6128State Police
Emergency Medical TechnicianInfo617-753-8300Dept of Public Health
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Guard and Hearing Dog Businesses617-727-3000Dept of Agricultural Resources
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Private Detectives978-538-6128State Police
Security Guard Agencies978-538-6128State Police
Security System Contractors617-727-3200Dept of Public Safety
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