Middlesex Sheriff
@msosheriff
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Official account of the Middlesex (MA) Sheriff's Office. This account is not monitored 24/7. Please call 911 in an emergency
Middlesex County, Mass.
Joined September 2011
Day 1 of the 53rd Basic Training Academy is underway for our newest crop of correction officer recruits. Please join us in wishing them the best of luck as they begin their training. #53rdBTA
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Today, we honor and remember Correction Officer James A. Callahan, Sr. Ofc. Callahan passed away 52 years ago today following an assault by an inmate that officers were escorting inside the Middlesex Jail & House of Correction. His service and sacrifice will never be forgotten.
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Five weeks, 550+ cadets, 25+ communities, and thousands of dino nuggets later. #YPSA25 is a wrap! Thank you to our incredible counselors, support staff, and partners who helped create another unforgettable summer for children in Middlesex County. Can't wait for YPSA 2026!
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On this #NationalAviationDay, we salute the pilots, crews, and support teams of @MassStatePolice Air Wing, @bostonmedflight, @umassmemorial Life Flight, @TheNationsFirst, and @USCGNortheast who help keep our communities safe and provide critical transport to those in need.
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This weekend, the MSO Honor Guard joined veterans, local Stoneham residents & family members to dedicate squares in memory of WO 2 George C. Schultz Jr. and Sgt. Joseph C. Cerrone Jr. The ceremonies remembered two Stoneham residents killed in the line of duty in the Vietnam War.
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A fun-filled day in Marlborough Saturday with @SpOlympicsMA celebrating the achievements of an incredible group of athletes. Congratulations to all those who competed today!
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Glad to be in Lowell today for the Southeast Asian Water Festival supporting our at @LowellPD partners.
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Sheriff @PeterKoutoujian & @DAMarianRyan recently spoke with interns from the DA's office as part of a visit to the Middlesex Jail & House of Correction. They got an inside look at our operations, programs & what we do to support those in our care.
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Over the past several days, MSO members attended the 49th Annual NOBLE Training Conference. Staff participated in a wide range of breakout sessions, while also meeting with key leaders like @UMassBoston Police Chief Stacey Lloyd & @LPDPIO Deputy Chief Kevin Granville. #NOBLE49
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The final week of #YPSA25 was filled with lots of summer fun & safety education! This couldn't have happened without the support of our public safety partners from Arlington, Framingham, Medford, Natick, and Woburn!
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Congrats to our Week 5 #YPSA25 graduates! This week, cadets were primarily from the communities of Arlington, Framingham, Medford, Natick, and Woburn!
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Cadets had an amazing time during the final Community Day of #YPSA25 thanks to our public safety partners in Arlington, Framingham, Medford, Natick, & Woburn, plus DEVCOM!
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Our team was excited to visit with residents across Middlesex County during #NationalNightOut Tuesday. Great to meet NBA World Champion @celtics head coach Joe Mazzulla and talk with hundreds of residents, colleagues and partners.
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.@LexingtonPolice and the MSO recently partnered to deliver interactive, scenario-based training for local officers
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Tonight communities across Middlesex County will be celebrating National Night Out and Public Safety Night. We can't wait to join local residents and our partners in Acton, Ashland, Bedford, Malden, Medford, Natick, Newton, Somerville and Wilmington for a fun-filled night!
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Week 4 of #YPSA25 was filled with educational lessons, fun activities and great visits for our cadets thanks to @bedfordpd, @BelmontPD, @BillericaPD, @MarlboroughMaPD, @WatertownPD and all of the public safety partners who gave of their time last week.
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Important scam awareness alert from our @FBIBoston colleagues. Please take a few minutes to review this information about law enforcement impersonation scams.
📣FBI Boston is warning New Englanders to beware of scammers impersonating well-known law enforcement & government agencies, including the FBI, in attempt to extort money or steal personally identifiable information. Learn how to avoid becoming a victim:
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Congrats to our Week 4 #YPSA graduates. This week, we salute cadets primarily from Bedford, Belmont, Billerica, Marlborough and Watertown.
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Thanks to @StonehamMAPD for the invitation to participate in Safety Night earlier this week. We had a great time meeting with the local residents who stopped by to check out all the fun activities.
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Incredible #YPSA25 community day Wednesday thanks to our partners in Bedford, Belmont/Watertown, Billerica and Marlborough. Grateful for the added participation of staff from @Hanscom_AFB & @bostonmedflight.
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