Deputy Superintendent Ahern has been a Cambridge Police Officer for over 26 years and is currently assigned as the Tactical Operations Commander. Deputy Ahern has been a police trainer most of his career with certifications in firearms, use of force, counter-terrorism, special operations, counter IED operations, hazardous materials containment, critical incident management, incident command and threat analysis/risk assessment. Deputy Ahern coordinated the multi-agency UCC for the memorial service of MIT police officer Sean Collier, who was killed in the aftermath of the 2013 Boston Marathon bombings; represented Cambridge on the statewide Project Management Team for the Boston Marathon Bombings After-Action Report; facilitates biweekly Problem-Solving meetings with department supervisors; established and trained the department’s first K-9 explosive ordnance detection unit through the regional Urban Areas Security Initiative; and received federal accreditation for the Explosive Ordnance Unit. Deputy Ahern spent 17 years as team leader for the Special Response Team and then 7 years as the Bomb Squad Commander. Deputy Ahern holds a Master’s and Bachelor’s Degree from Western New England University and is a graduate of the 239th session of the FBI National Academy. Deputy Ahern is a veteran of the United States Marine Corps as well as the Massachusetts Army National Guard.