INTERPOL HANDBOOK ON DNA DATA EXCHANGE AND PRACTICE

•potential sources of dnaThere are many different items that can provide a source of DNA evidence. Below isa list of possible sources:evidenceTable 2: Potential DNA sourcespossible location ofdna on the evidencesource of dnaBite mark Person’s skin or clothing Saliva (mouth cells)Blanket, pillow, sheet Surface areaBlood, dandruff, hair, saliva,semen, sweat, urine and/orvaginal fluidBottle, can, glass Sides, mouthpiece Fingerprint, saliva and/or sweatDirty laundrySurface areaBlood, dandruff, hair, semenand/or sweatDoor knobs On the handle Fingerprints, skin and/or sweatSpectacles Nose or ear pieces, lens Skin and/or sweatFacial tissue, cotton swab Surface areaBlood, nasal or ear secretions,semen and/or sweatFingernail Under nail or attached to it Blood, flesh and/or sweatHat, bandanna, mask Inside Dandruff , hair and/or sweatStamp of envelope Licked area SalivaTape or ligature Inside/outside surface Fingerprints, skin and/or sweatRecovered bullet Outside surface Blood and/or fleshToothpick Tips SalivaUsed cigarette Cigarette butt SalivaUsed condomInside/outside surfaceFaeces, rectal cells, semenand/or vaginal fluidWeapon, e.g. baseball bat, knife,etcHandle, endBlood, fingerprints, fleshand/or sweatThis is not an exhaustive list; any item that has been handled is a potential source of DNA.DNA SAMPLINGAND EVIDENCE COLLECTIONPAGE 23