IAI CSSA study plan

Map the full crime scene investigation domain into a personal outline covering first response, scene security, documentation, evidence handling, and chain of custody.

Define and write out from memory the sequence of first-responder duties at a scene, from arrival and safety check to scene preservation and initial notification.

Build a personal glossary of 40 core CSI terms, including scene contamination, cross-contamination, primary and secondary scenes, and locus of the crime.

Practice writing a short scene-arrival narrative that records observations, conditions, and actions taken without adding conclusions.

Explain the principles of scene documentation, including photography, sketching, and note-taking, and describe what each method captures that the others do not.

Describe the purpose and structure of a rough sketch and a final sketch, including scale, orientation, and fixed reference points.

Outline the categories of physical evidence and give two realistic examples of each category.

Draft a mock scene sketch with a legend, scale notation, and at least six labeled evidence markers.

Trace the chain of custody from collection to courtroom and list the entries every evidence log must contain.

Describe packaging and preservation requirements for biological, latent print, trace, digital, and firearm evidence.

Identify common evidence-handling errors that lead to contamination or inadmissibility, and write a short prevention checklist for each.

Explain the roles of the first responder, the lead investigator, the evidence technician, and the laboratory analyst at a scene.

Compare scene search patterns, including line, grid, spiral, zone, and wheel, and state when each is preferred.

Describe how scene type changes investigative approach for indoor, outdoor, vehicle, and fire scenes.

Explain the purpose and limits of scene reconstruction and how reconstruction differs from reenactment.

Write timed practice answers to ten short-answer prompts on scene processing and evidence handling.

Explain the fundamentals of latent print development, including powder, chemical, and alternate light source methods and when each applies.

Describe biological evidence collection, including DNA preservation, drying requirements, and reference sample collection.

Outline the basics of firearm and toolmark evidence handling, including safe unloading, serial number recovery, and packaging.

Summarize digital evidence seizure at a scene, including isolation of devices, preservation of volatile data, and documentation of device state.

Describe death investigation basics, including signs of death, postmortem changes, and the difference between cause, mechanism, and manner of death.

Explain the medical examiner and coroner roles and how the investigator coordinates with each.

Identify the legal boundaries on scene search, including consent, warrant, plain view, and exigent circumstances, and state how each affects evidence collection.

Write a one-page summary of how legal constraints shape decisions made at the scene.

Work through at least three full mock scenes end to end, from arrival through evidence submission, and document every decision made.

Identify personal weak areas from the mock scenes and write targeted corrective notes for each.

Practice explaining scene findings in plain language suitable for a courtroom or briefing audience.

Review all prior deliverables and consolidate them into a single indexed reference document.

Take two full-length timed practice exams under test conditions and record scores by subtopic.

Review every missed question and write the correct fact in your own words rather than copying the answer.

Re-drill the three weakest subtopics identified by practice exam scores.

Finalize a one-page pre-exam fact sheet covering the highest-yield scene processing rules and evidence handling requirements.