John Medcalf
Porter
Summary
Highly experienced Transportation and Law Enforcement professional with over 20 years of experience in custody, detainee transport, and regulatory enforcement. Proven ability to safely transport individuals in custody, maintain strict chain of custody protocols, and operate under high-pressure environments. Extensive background in DOT compliance, commercial vehicle inspections, and multi-agency task force operations. Recognized for leadership, decision-making, and maintaining safety standards during long-distance and high-risk transport operations.
Overview
36
36
years of professional experience
Work History
DMV Investigator
Texas Department of Motor Vehicles
Houston, TX
11.2021 - 09.2024
- Safely transported detainees and individuals in custody across multiple jurisdictions while maintaining strict chain of custody procedures
- Extensive experience conducting DOT inspections on emergency vehicles, buses, and commercial vehicles
- Managed transportation of large commercial equipment across the state of California
- Operated large vehicles, including a 40-foot diesel pusher motorhome
- Coordinated with multi-agency task forces including police departments, sheriff’s offices, and probation agencies
- Enforced compliance with transportation safety regulations and operational standards
- Conducted detailed investigations involving regulatory compliance, vehicle operations, and transportation-related violations
- Performed inspections and audits of commercial vehicles to ensure compliance with DOT regulations
- Reviewed documentation, verified licensing and operational compliance, and identified safety violations
- Conducted interviews with involved parties, witnesses, and operators to support investigations
- Prepared comprehensive reports used in legal and administrative proceedings
- Collaborated with state and local agencies on enforcement actions and investigations
- Ensured adherence to safety standards and transportation regulations across all investigations
Law Enforcement Sergeant
California Highway Patrol
Monterey, CA
01.2014 - 01.2018
- Supervised officers in high-risk environments, including detainee handling and transport operations
- Managed critical incidents including pursuits, collisions, and hazardous material responses
- Reviewed and approved enforcement and transport-related reports
- Conducted internal investigations and ensured compliance with departmental policies
- Coordinated staffing, scheduling, and operational readiness
Traffic Officer (Promoted to Sergeant)
California Highway Patrol
San Bernardino, CA
04.1998 - 01.2014
- Investigated traffic collisions and criminal violations.
- Enforced vehicle and penal codes through citations and arrests.
- Assisted emergency responders in incident management.
- Managed VIN inspections and tow truck regulatory programs.
- Served as Officer-in-Charge during supervisory absences.
- Selected for specialized commercial enforcement training.
Property Claims Adjuster
Farmers Insurance Group
Colton, CA
02.1996 - 02.1998
- Managed 15–20 claims weekly, analyzing coverage and damages.
- Conducted investigations and interviews with claimants and witnesses.
- Prepared detailed reports and negotiated settlements.
- Recommended litigation when necessary.
Merchant Teller
Bank of America
San Bernardino, CA
01.1989 - 02.1996
- Processed high-volume financial transactions accurately.
- Delivered strong customer service and identified sales opportunities.
- Maintained accuracy in cash handling and financial records.
Education
Bachelor of Science - Finance
California State Polytechnic University
Pomona, CAAssociate of Arts - Business Administration
San Bernardino Valley College
San Bernardino, CASkills
- Detainee & Inmate Transport
- Custody, Control & Safety Procedures
- DOT Regulations & Compliance
- Commercial Vehicle & Safety Inspections
- Incident Response & Emergency Management
- Multi-Agency Coordination
- Report Writing & Documentation
- Defensive Driving & Transport Safety
- Leadership & Command Presence
LANGUAGES
Spanish – Intermediate
Timeline
DMV Investigator
Texas Department of Motor Vehicles
11.2021 - 09.2024
Law Enforcement Sergeant
California Highway Patrol
01.2014 - 01.2018
Traffic Officer (Promoted to Sergeant)
California Highway Patrol
04.1998 - 01.2014
Property Claims Adjuster
Farmers Insurance Group
02.1996 - 02.1998
Merchant Teller
Bank of America
01.1989 - 02.1996
Associate of Arts - Business Administration
San Bernardino Valley College
Bachelor of Science - Finance
California State Polytechnic University
ADDITIONAL QUALIFICATIONS
- Strong experience reviewing reports, inspections, and compliance documentation
- Proven ability to ensure safety standards and operational readiness
- Skilled in coordinating with management and resolving operational issues
- Experience maintaining accurate records and regulatory compliance
- Background in interviewing, screening, and evaluating personnel
- Highly detail-oriented with strong organizational and reporting skills