Document the event, the response, and what changed next.

Begin with one entry for each event. Record the date and approximate time, location or communication channel, participants, exact words you remember, action taken, and documents that were created. If the time or quote is uncertain, say so. A candid note such as ‘approximately 2:30 p.m.’ is more useful than false precision. Keep later recollections separate from the original entry so the record shows what was known when.

Use concrete descriptions. ‘Supervisor moved my Monday client meeting to Jordan after I requested leave’ gives a reviewer a responsible person, event, sequence, and comparison to investigate. ‘They retaliated’ states a conclusion without the underlying facts. Legal significance depends on the governing statute, the worker's status, the employer's coverage, the content and recipient of any prior request or complaint, and why the employer says it acted.

Preserve favorable and unfavorable facts. Include prior coaching, attendance problems, policy discussions, and legitimate operational explanations along with positive reviews and suspicious changes. A selective diary can be attacked as advocacy. A balanced chronology lets counsel test whether the evidence supports discrimination, retaliation, leave interference, breach of agreement, protected concerted activity, or no viable legal claim.

Personal records may include the offer letter, pay stubs, benefits notices, schedules received by the worker, performance reviews delivered to the worker, personal calendar entries, and messages already exchanged through a personal account. Employer-controlled sources can include human-resources files, access logs, internal chat, security video, timekeeping, complaint files, investigation notes, accommodation records, leave designations, and manager communications. The fact that a worker once viewed material at work does not answer whether the worker may copy, retain, or distribute it.

List each likely source without trying to acquire it unlawfully. Identify the system, approximate date range, records source, and why it matters. For a schedule-change dispute, useful sources may include the published schedule, edit history, time records, supervisor messages, and comparison employees' assignments. For harassment, the map may include direct messages, meeting participants, internal reports, policy acknowledgments, and the employer's response.

Agency records form a separate branch. An Equal Employment Opportunity Commission portal record, Oklahoma Office of Civil Rights Enforcement complaint, Wage and Hour Division communication, Occupational Safety and Health Administration whistleblower file, or National Labor Relations Board charge has its own access and disclosure rules. Keep submission confirmations and agency correspondence together, but do not assume an internal report or online inquiry opened an agency case.

Do not guess that a document is safe to copy because it may help a claim. Client files, patient information, personnel data about coworkers, passwords, source code, pricing, trade secrets, privileged communications, and regulated records can create serious problems. Do not use someone else's credentials, defeat a technical control, enter a system after authority ends, secretly change a file, or delete material. Ask counsel how to handle a disputed category before moving it.

When lawful, preserve the original form and context. Keep the full email with header information rather than a cropped screenshot. Retain the entire text thread rather than only one line; note the file name and creation date. And avoid annotating the only copy. A working copy can be highlighted separately. Do not edit metadata or forward a chain in a way that loses attachments.

If a device or account belongs to the employer, record the existence of the material and seek advice before transferring it.

Recordings require separate analysis. Whether a recording was lawful, whether a policy applies, who participated, where the speakers were located, and how the file was created all matter. This guide does not tell a visitor to record a conversation. The safer general step is to write a prompt, factual summary immediately afterward and identify everyone present.

Read the current policy, collective-bargaining agreement, leave procedure, accommodation process, and agency instructions that may govern. Identify the correct recipient and whether the concern should be reported to a supervisor, another manager, human resources, an ethics channel, a leave administrator, union representative, agency Equal Employment Opportunity counselor, or government agency. Those paths are not interchangeable, and a report to one recipient does not necessarily satisfy another system.

Write the report so the recipient can act. State the event, who was involved, why it is a concern, what protection or correction is requested, and where supporting material can be found. If discrimination is suspected, include the facts connecting treatment to a protected characteristic instead of relying on the word ‘unfair.’ If leave is needed, give enough information to identify a potentially qualifying reason without unnecessarily broadcasting medical detail to coworkers.

Preserve proof of delivery and the response. Save the sent message, portal confirmation, ticket number, certified-mail information, meeting invitation, or signed receipt available through the authorized system. Record follow-up dates and any change in schedule, duties, evaluation, access, pay, or treatment. Do not assume silence extends a deadline or that an internal investigation pauses an agency filing period.

Maintain a personal list of important dates, names, policies received, benefit notices, pay information, and records the worker is entitled to possess. If an exit meeting occurs, write down who attended, the stated reason, documents presented, property returned, access disabled, and questions left unanswered. Ask for copies through an authorized channel. Do not sign a factual admission or release merely to obtain a copy for review.

After separation, preserve the termination communication, severance proposal, final pay and benefit notices, unemployment submissions, reference communications, and job-search record. Keep post-employment contacts and any alleged retaliation in a new section of the timeline. Avoid social-media posts that disclose confidential material, identify witnesses unnecessarily, or lock the worker into a rushed account.

A preservation request may be appropriate, but its target and wording require judgment. It should identify likely custodians, systems, subjects, and time ranges without asserting unsupported facts. Sending a generic demand to the wrong entity does not secure evidence. Counsel should determine whether litigation is reasonably anticipated, which parties control the sources, and what formal or informal preservation steps fit the matter.

Prepare a one-page timeline with columns for date, event, responsible person, source, and why the event may matter. Add an entity sheet identifying the legal employer named on pay and tax records, worksite operator, staffing company, parent or affiliate, union, benefit administrator, and government agency if any. Do not merge related organizations without evidence of their roles.

Create a question list: What is the earliest adverse event? What complaint, request, leave, or group activity occurred before it? Who knew? What reason was given? Which comparator or policy may test consistency? Which source is at risk of loss? What filing system might apply? What is the earliest plausible time limit? These questions help counsel triage without pretending the answers are established.

Bring originals or clean copies, the chronology, the employer policy, and all agency notices. Flag missing sources and access concerns. Tell counsel promptly about any copied restricted information, recording, prior lawyer, union grievance, arbitration agreement, bankruptcy, government employment, immigration concern, or signed release because each can change the analysis and handling plan.