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Trusted Private Investigator Services in San Diego
Baker Street Group is an experienced, highly trained, resourceful, and ethical team of private investigators based in San Diego, CA. Our team brings over 150 years of combined experience, with experts formerly employed by the FBI, IRS, Department of Defense, and state/local criminal agencies. We specialize in attorney services, general investigations, forensic accounting, criminal defense, financial investigations, civil litigation, and internal investigations for schools, churches, and non-profits. Our nationally recognized leadership delivers efficient and confidential solutions to businesses and legal communities across the United States.

Clients include prestigious law firms, large metropolitan school districts, and state, county, city, and tribal governments. We prioritize resolving both simple and complex issues while maintaining the highest standards of professionalism and ethics. Our California PI License (22086) and Utah PI License (P112891) underscore our commitment to legal compliance and excellence in investigative services.
Services
Civil Litigation Forensic Accounting Criminal Defense Financial Investigations Internal Investigations Social Media Research General Investigations Schools & Non-Profits Attorney Services
Highlights and features
  • Our team includes former FBI, IRS, and law enforcement professionals with 150+ combined years of experience.
  • We maintain active California and Utah private investigator licenses for legal compliance.
  • Our ethical approach ensures client confidentiality and professional integrity.
  • We serve prestigious law firms, government agencies, and educational institutions nationwide.
  • Nationally recognized leadership delivers tailored solutions for complex investigative challenges.
Services
Civil Litigation
We provide comprehensive investigative support for civil litigation cases, including evidence collection, witness interviews, and documentation analysis. Our team assists attorneys with complex legal matters involving corporate disputes, personal injury claims, and contract violations. With former law enforcement specialists, we ensure thorough, legally compliant investigations that withstand courtroom scrutiny.
Forensic Accounting
Our forensic accounting services uncover financial discrepancies, fraud, and embezzlement through detailed record analysis and expert testimony preparation. We work with legal teams and businesses to trace illicit transactions, quantify losses, and present findings in court-ready formats. Former IRS and federal agency professionals apply advanced techniques to resolve complex financial disputes.
Criminal Defense
We support criminal defense attorneys with evidence review, alibi verification, and witness location services. Our investigators specialize in uncovering exculpatory evidence, analyzing prosecution claims, and building robust defense strategies. With backgrounds in federal and local law enforcement, we provide critical insights into criminal case dynamics.
Internal Investigations
We conduct discreet internal investigations for schools, non-profits, and businesses facing allegations of misconduct, fraud, or policy violations. Our process includes employee interviews, document review, and reporting to help organizations resolve issues while minimizing reputational risk. We maintain strict confidentiality throughout the investigative process.
Social Media Research
Our team performs targeted social media monitoring and digital footprint analysis to gather evidence for legal cases. We track online activity across platforms to uncover relevant information while adhering to ethical and legal standards. This service supports litigation, background checks, and reputation management efforts.
People
Darwin Wisdom
Investigator
Former federal agent with 25+ years of experience in complex investigations, specializing in financial crimes and corporate compliance.
Roger Lange
Investigator
Retired law enforcement professional focusing on criminal defense support and witness testimony preparation for high-stakes cases.
Steven J. Alldredge
Investigator
Expert in digital forensics and social media analysis with a background in cybercrime investigations for government agencies.
Wade L. Dudley
Investigator
Specializes in internal audits and compliance investigations for educational institutions and non-profit organizations.
Kyle Scroggins
Investigator
Former IRS criminal investigator with expertise in forensic accounting and financial fraud detection for legal proceedings.
Questions
What types of cases do you handle?
We specialize in civil litigation support, forensic accounting, criminal defense investigations, and internal audits for organizations.
Are your investigators licensed?
Yes, we hold active private investigator licenses in California (22086) and Utah (P112891).
Do you work with law firms nationwide?
Yes, our clients include prestigious law firms across the United States requiring expert investigative support.
How do you ensure confidentiality?
We maintain strict ethical standards and use secure protocols to protect sensitive information throughout investigations.
Can you assist with corporate compliance issues?
Yes, we conduct internal investigations for businesses and non-profits to address fraud, misconduct, or regulatory concerns.