IAI CCSI study plan

Map the full CCSI crime scene investigation domain into a written outline covering scene security, documentation, evidence recognition, collection, packaging, and chain-of-custody topics

Define and memorize the legal foundations that govern scene work: Fourth Amendment search and seizure principles, warrant requirements, plain view, exigent circumstances, and consent

Build a personal glossary of at least 40 core terms (chain of custody, control sample, associative evidence, reconstruction, probative value) with your own one-line definitions

Draft a one-page decision checklist for securing and entering a scene that you can reproduce from memory

Sequence the first-responder duties in order and explain why each step protects evidence integrity

Distinguish administrative, criminal, and accident scene types and the investigative approach each requires

Practice writing a scene narrative that separates observation from inference for a hypothetical burglary scene

Identify the documentation triad (notes, photography, sketches) and state the purpose each serves in court

Describe photographic documentation standards including overall, midrange, and close-up coverage and the role of scales and placards

Explain the elements a crime scene sketch must contain and the difference between rough and finished sketches

Outline the components of a final scene report that make it defensible in testimony

Compare measurement methods for sketching (rectangular coordinates, triangulation, baseline, polar) and when each is appropriate

Classify physical evidence types (biological, latent print, trace, impression, digital, firearms-related) and match each to proper collection and packaging methods

Explain contamination avoidance, personal protective equipment, and sterile technique at scenes involving biological evidence

Describe chain-of-custody requirements from collection through analysis and courtroom presentation

Identify common evidence-handling errors that lead to suppression or lost probative value

Explain the roles of latent print processing, DNA collection, trace evidence, and impression evidence at a scene and how they interact

Describe bloodstain pattern categories (passive, spatter, transfer, void) and what each can indicate about events

Outline basic shooting scene reconstruction considerations including trajectory and cartridge case location

Summarize how digital evidence at a scene (phones, computers, cameras) should be preserved and seized

Explain the purpose and process of scene reconstruction and the difference between reconstruction and reenactment

Describe how investigators test hypotheses and avoid confirmation bias during reconstruction

Outline death investigation scene considerations including body position documentation and the role of the medical examiner

Summarize special scene types such as fire, explosion, and hazardous materials scenes and the safety and preservation priorities for each

Write and rehearse answers to likely courtroom questions on documentation, chain of custody, and evidence handling

Identify the standards and best-practice bodies that inform scene investigation (such as NIST and SWGDE-type guidance) without claiming official affiliation

Review and correct your glossary and outline against your weakest quiz topics

Complete a timed 60-question mixed practice set across the full domain and log every missed item by subtopic

Re-drill the top five weakest subtopics identified in the week 7 error log until recall is consistent

Reproduce the scene-entry checklist, documentation triad, evidence-type matrix, and chain-of-custody steps from memory

Complete two additional timed practice sets and compare scores to week 7 to confirm improvement

Finalize a one-page master review sheet you can reread in the final days before the exam