Professional Investigative Services

For more than 35 years, L. Biela & Associates Detectives has provided disciplined, confidential investigative support for attorneys, businesses, and individuals throughout Chicago and Illinois.

Criminal Defense Investigations

Witness interviews, scene assessments, discovery and case-file analysis, timelines, and investigative summaries.

Process Service

Reliable legal document delivery throughout Chicagoland and beyond.

Corporate & Internal Investigations

Workplace misconduct, employee concerns, and operational fact-finding handled with discretion.

Fraud Investigations

Fact-based review of suspected fraud, misrepresentation, and financial irregularities.

Asset & Debtor Investigations

Locating people, identifying leads, and tracing available assets.

Background Investigations & Skip Tracing

Identity, history, contact, and location research for legal and business needs.

Surveillance & Field Investigations

Discreet observation, documentation, and field support.