Lesson 1Latent fingerprint recovery methods: powder, cyanoacrylate fuming, alternative light sources, lifting an packaging printsDis section details locating an developing latent fingerprints using powders, cyanoacrylate fuming, an alternative light sources, then lifting, labeling, an packaging developed prints to preserve ridge detail an evidentiary value.
Selecting appropriate fingerprint powdersCyanoacrylate fuming workflowsUsing ALS to locate latent printsLifting wid tape, hinge lifters, gelsLabeling an packaging lifted printsAvoiding contamination an overdevelopmentLesson 2Tool mark an entry point evidence: documenting broken window/frame, collection of tool fragments, casting an photographyDis section covers recognition an documentation of tool marks an entry points, including photographing damaged frames an locks, casting tool impressions, collecting tool fragments, an preserving surfaces fi later comparison.
Surveying doors, windows, an framesClose-up photography wid oblique lightCasting tool marks wid silicone or dental stoneCollecting an packaging tool fragmentsProtecting marked surfaces from handlingRecording measurements an orientationLesson 3Biological evidence packaging an labeling: evidence envelopes, breathable containers fi wet items, swabbing vs bulk collectionDis section explain how to select an label packaging fi biological evidence, emphasizing breathable containers, separation of wet an dry items, swabbing versus bulk collection, an labeling dat supports later laboratory analysis.
Choosing envelopes, bags, an boxesUsing breathable containers fi wet itemsSwabbing versus bulk item submissionPreventing mold an cross-contaminationLabeling fi source, location, an hazardsSealing methods an tamper-evident tapeLesson 4Footwear an impression evidence: casting techniques (dental stone, silicone), photography wid scales, recovery of partial printsDis section focuses on locating, documenting, an recovering footwear an other impression evidence, including photography wid scales, casting wid dental stone or silicone, lifting partial prints, an protecting impressions from damage.
Searching fi latent an visible impressionsPhotographing impressions wid scalesCasting wid dental stone outdoorsSilicone an gel casting fi delicate printsLifting dusty or partial footwear marksProtecting impressions from weather an trafficLesson 5Questioned documents an paper evidence: handling printed case files, securing originals vs copies, avoiding heat/moisture damageDis section addresses handling questioned documents an paper evidence, including securing originals, limiting handling, avoiding heat an moisture, packaging printed case files, an documenting any preexisting damage or alterations.
Recognizing document evidence typesMinimizing handling an using supportsSeparating originals from working copiesPackaging to prevent folds an tearsAvoiding heat, light, an moisture damageDocumenting existing marks an alterationsLesson 6Trace evidence collection: tape lifts, vacuuming, tweezers, particle sampling, avoiding contaminationDis section details methods fi collecting trace evidence such as fibers, hairs, an particulates using tape lifts, vacuuming, an tweezers, while minimizing contamination an preserving spatial relationships fi interpretation.
Prioritizing trace evidence at scenesTape lifts: selection an applicationVacuum collection an filter handlingTweezers an micro-spatula techniquesPackaging trace from different substratesContamination control an field blanksLesson 7Comprehensive evidence checklist fi office scenes: glass, textiles, footwear impressions, tool marks, fibers, fluidsDis section provides a structured checklist fi office crime scenes, ensuring systematic identification an collection of glass, textiles, footwear impressions, tool marks, fibers, an biological fluids widout overlooking critical trace evidence.
Pre-entry planning an PPE selectionSystematic room-by-room walkthroughChecklist fi glass an broken fixturesChecklist fi textiles, papers, an fabricsChecklist fi footwear an tool marksChecklist fi fluids, hairs, an fibersLesson 8Glass an broken object evidence: fracture pattern documentation, edge matching, collection an packaging of shardsDis section addresses identification an collection of glass an broken object evidence, including fracture pattern documentation, direction-of-force assessment, edge matching, an safe packaging of shards to preserve reconstruction potential.
Photographing glass in situRadial an concentric fracture patternsDirection-of-force interpretation basicsEdge matching an reconstruction stepsCollecting an packaging glass shardsSafety measures when handling sharp glassLesson 9Blood an biological fluids: presumptive tests, safe collection, swabbing techniques, drying, packaging an cold-chain considerationsDis section explain recognition an safe handling of blood an biological fluids, presumptive testing, swabbing an cutting techniques, drying procedures, packaging, an cold-chain practices dat preserve DNA an minimize health risks.
Scene safety an PPE fi biohazardsLocating an documenting bloodstainsPresumptive tests fi blood an semenSwabbing, cutting, an scraping methodsDrying biological samples before packingCold-chain planning an documentationLesson 10Evidence storage an transport: evidence rooms, refrigeration fi biologicals, transporting electronic devices safelyDis section covers secure storage an transport of physical, biological, an digital evidence, including evidence room controls, refrigeration, packaging choices, an procedures dat prevent degradation, loss, or alteration during movement.
Evidence room access an loggingShort- an long-term storage optionsRefrigeration an freezing of biologicalsPackaging fi safe transport in vehiclesTransporting electronic devices safelyMonitoring temperature an chain of custody
