Business Details
27 Years
experience
Your Trusted Boston Private Investigator for Criminal Defense & Missing Persons
Shamshak Investigative Services, established in 1999, is a Boston-based private investigation and security consulting firm led by retired police chief Thomas P. Shamshak. Our expertise spans criminal defense investigations, cold case murders, and missing person cases, supported by decades of law enforcement experience and academic credentials in criminal justice. We provide police procedures expert testimony in federal and state courts, drawing on specialized knowledge from 21 years of municipal police service and leadership roles. Our team offers comprehensive investigative services including surveillance, records research, and witness interviews, tailored to meet the needs of both plaintiff and defense counsel. With a focus on integrity and professionalism, we deliver actionable intelligence through asset searches, background investigations, and security consultations.Our founders academic background as a college instructor and program director at Boston University enhances our approach to investigative training and methodology. Recognized for media expertise, we have provided commentary on high-profile cases to national networks including CNN and Investigation Discovery. Our commitment to excellence is reflected in our life memberships with the Massachusetts Chiefs of Police Association and International Association of Chiefs of Police. We specialize in reconstructing complex cases through meticulous evidence gathering and analysis, ensuring clients receive thorough, court-ready documentation. Our services extend to corporate security, crisis management, and workplace violence prevention, addressing modern investigative challenges with proven strategies.
Services
Criminal Defense Investigations
Cold Case Murders
Missing Persons
Surveillance
Asset Searches
Background Investigations
Security Consultations
Witness Statements
Corporate Intelligence
Workplace Violence Prevention
Details
- Year established: 1999
Highlights and features
- 26 years of investigative experience in Boston
- Led by a retired police chief with 21 years of law enforcement service
- Court-certified police procedures expert with federal/state testimony experience
- Academic leadership as former Program Director at Boston University
- Recognized media expert with appearances on CNN, Fox News, and Investigation Discovery
Associations and certifications
- Massachusetts Chiefs of Police Association
- International Association of Chiefs of Police
Services
Records Research
Our records research locates public and private records to gather vital data including personal history, property ownership, and legal records. This service supports legal cases by uncovering connections through documented evidence. Clients receive comprehensive reports detailing findings from court, government, and private databases.
Surveillance
We conduct discreet surveillance to document activities for criminal investigations, missing persons, and civil cases. Our methods capture evidence of wrongful actions or verify claims through visual documentation. Clients benefit from detailed logs and admissible evidence for legal proceedings.
Interviewing
Our team conducts structured interviews with witnesses, victims, and experts to reconstruct events and gather testimonial evidence. This service connects facts and identifies leads for criminal defense and civil cases. Clients receive analyzed insights to strengthen their legal positions.
Security Consultations
We provide security assessments for corporate, executive, and event protection needs. Our consultations identify vulnerabilities and recommend prevention strategies for workplace violence and asset protection. Clients gain actionable plans to enhance physical and operational security.
Cold Case Murders
Our cold case specialists re-examine unsolved homicides using modern investigative techniques. We analyze existing evidence, locate new witnesses, and build prosecutable cases. Clients receive renewed investigative momentum through our law enforcement expertise and academic background.
People
Thomas P. Shamshak
Owner/Operator
Retired police chief with 21 years of law enforcement experience, including leadership roles in three Massachusetts departments. Holds advanced degrees in sociology and criminal justice, served as police academy director, and taught at multiple universities. Recognized expert in police procedures with media appearances on CNN and Investigation Discovery.
Questions
What types of cases do you specialize in?
We specialize in criminal defense investigations, cold case murders, missing persons, and security consultations for corporate and individual clients.
What credentials does your team have?
Our lead investigator is a retired police chief with 21 years of law enforcement experience, advanced degrees in criminal justice, and court-certified expert testimony qualifications.
Do you offer expert testimony services?
Yes, we provide police procedures expert testimony in federal and state courts, drawing on decades of law enforcement and academic experience.
Are your services available outside Boston?
While based in Boston, we handle cases throughout Massachusetts and consult on investigations requiring specialized expertise nationwide.
