The Record Decides

A case is not decided by what happened. It is decided by what can be proven to have happened.

A trench closes over a worker. A hand is gone. A lung is scarred. Everyone in the room - plaintiff's counsel, defense counsel, the claims professional, the safety director who now cannot sleep - holds a version of events. None of them decides anything.

What decides is the record: the sampling data and the calibration logs beneath it, the energy-control procedure that was or was not written for that machine, the soil that was or was not classified, the training file, the audit finding that was or was not closed out, the 300 entry that was made - or conspicuously not made. It was created long before anyone chose sides, and it says what it says for whichever party reads it with discipline.

The Record Decides is about reading it with discipline.

Drawing on forty years of practice in safety and industrial hygiene, and on his own work as an expert witness, Logan F. Martin, PhD, CIH, CSP, CHMM, delivers the field guide neither law school nor a safety certification provides: how an air sample becomes a number and where it breaks; how an eight-hour time-weighted average is built and how it is taken apart; what the Field Operations Manual requires of a compliance officer, and what happens when the case file shows he did not; how an exposure is reconstructed decades after the fact so it survives Rule 702; and why the "competent person" on the org chart may not have been one.

Inside, across twenty-nine chapters and five parts:

• Building and attacking expert opinions under the amended Rule 702 - what changed on December 1, 2023, and where safety opinions get struck
• The Rule 26 report, the deposition, the Daubert hearing, and an annotated direct and cross of one opinion
• An OSHA case from the first knock at the gate through contest and the Review Commission
• The five ways an OSHA case fractures - applicability, exposure, and knowledge in the prima facie case, plus the two affirmative defenses
• Auditing OSHA's sampling methodology - calibration, placement, timing, laboratory, error adjustment
• Multi-employer worksites, state plans, retaliation, and third-party suits that escape the exclusive remedy
• Take-home exposure, spoliation, the first hours after an injury, and the OSHA 300 log
• The $411 million Valdivia verdict, built from the same record in either chair
• The safety professional's own turn in the witness chair, and what changes when a prosecutor enters
• Building an expert practice: engagement letters, conflicts, fees, and the career record that makes neutrality believable
• The rising dockets of the next five years: silica, heat, ergonomics, EtO, PFAS
• Artificial intelligence on four surfaces - the exposure model, the report, the jury demonstrative, and the employer's own systems, which now generate a record no one has learned to demand

Plus seven appendices: a first-call checklist for retaining an expert, a glossary, a case table, a standards-and-directives matrix, a FOIA playbook for the OSHA inspection file, and two annotated models - a Rule 26 report and an exposure assessment.

Written for both sides of the "v." For the attorney who needs the discovery targets, the governing standards, and the cases. And for the industrial hygienists, safety professionals, and EHS managers whose ordinary work product becomes the evidence binder - because the exposure assessment you write this year may be read aloud as Exhibit 14.

The hierarchy of controls does not rearrange itself for the defense. The calibration record is missing or it is not.

The record doesn't pick a side. An expert worth retaining doesn't either.