CONSULTING WITH PURPOSE

Homicide Expert Witness—Police Practices Expert— Criminal Investigation Consultant

Name: Andreu Experts, LLC
Address: Miami, FL, US
Telephone: 305-803-9877

Retain a Recognized Homicide Expert Witness

with Over 46 Years of Law Enforcement Experience

Nelson Andreu, MPA, EdD is a recognized homicide expert witness, police practices expert, and law enforcement consultant with over 46 years of experience in law enforcement and criminal investigations.

A veteran of the Miami Police Department, Dr. Andreu served more than 20 years in the Homicide Unit, investigating, supervising, and reviewing complex and high-profile homicide cases. On multiple occasions, he served as Acting Commander of the entire Homicide Unit, assuming responsibility for the unit for weeks and months at a time.

During his homicide career, Dr. Andreu was also temporarily assigned to both the FBI and DEA to assist with complex multiple-homicide investigations.

He later served as Chief of Police, providing an additional executive-level perspective on police administration, policies and procedures, supervision, training, use of force, and accepted law enforcement practices.

Dr. Andreu provides expert witness services to attorneys in criminal and civil litigation, including case review, expert reports, deposition testimony, and trial testimony.

Expert Witness Services for Homicide &

Criminal Investigations

Dr. Andreu is retained in matters involving:

Homicide investigations and investigative procedures
Police practices and law enforcement standards
Wrongful conviction claims
False or coerced confessions
Failure to investigate and investigative negligence
Interview and interrogation techniques
Investigative misconduct and procedural violations
Use of force and officer-involved incidents
Crime-scene and evidence-related investigative procedures
Investigative decision-making
Tunnel vision and confirmation bias

As a criminal investigation expert witness, Dr. Andreu provides clear, defensible opinions grounded in established law enforcement practices, the facts and evidence of each case, and decades of practical investigative, supervisory, and command experience.

Comprehensive Case Analysis &

Courtroom-Ready Opinions

Dr. Andreu provides:

Detailed case review and expert consultation
Analysis of investigative reports, evidence, interviews, and related records
Thorough expert reports and rebuttal analysis
Deposition testimony
Trial testimony
Strategic insight into case development and investigative decision-making

His analyses and opinions are prepared with the rigor necessary for Daubert scrutiny, deposition, cross-examination, and trial proceedings.

Police Practices &

Investigative Standards Expert

Drawing upon experience as a homicide investigator, supervisor, commander, Chief of Police, and criminal justice educator, Dr. Andreu evaluates whether investigative conduct and police practices were consistent with accepted law enforcement standards, including:

Proper crime-scene response and investigative procedures
Collection, evaluation, and use of investigative information
Sound interview and interrogation practices
Investigative follow-up and documentation
Avoidance of tunnel vision and confirmation bias
Compliance with accepted investigative policies, procedures, and practices
Supervisory and command decision-making
Use-of-force policies, practices, and procedures

He is frequently retained as a homicide, criminal investigation, and police practices expert witness in criminal and civil litigation.

Bilingual Spanish-English Expertise

Dr. Andreu is fully bilingual in English and Spanish, providing an additional level of expertise in cases involving Spanish-language witnesses, interviews, statements, investigative records, and law enforcement interactions.

His Spanish-English expertise also includes experience evaluating the accuracy and meaning of translated statements and communications in investigative and legal settings.

Why Attorneys Retain

Nelson Andreu, MPA, EdD

Over 46 years of law enforcement experience
More than 20 years with the Miami Police Department Homicide Unit
Former Chief of Police
Experience serving as Acting Commander of the Miami Police Homicide Unit
Temporarily assigned to the FBI and DEA for complex multiple-homicide investigations
Extensive investigative, supervisory, and command experience
Expertise in homicide investigation, police practices, and use of force
Experience in complex and high-profile homicide investigations
Criminal justice educator and police academy instructor
Fully bilingual in English and Spanish
Experience providing expert reports, deposition testimony, and courtroom testimony
Practical, real-world investigative expertise—not merely theoretical analysis

Recognized Homicide Expert Witness

Based in Florida, Dr. Nelson Andreu has been retained in multiple states and is available nationwide to provide homicide investigation, criminal investigation, police practices, and use-of-force expert witness services.

He works with attorneys on complex, high-stakes matters requiring credible, experienced, and independent analysis.

Each case is individually evaluated for subject-matter fit, availability, and potential conflicts.