If a cheek swab cannot be provided,
there are other sample types that may be suitable for DNA testing.
| Sample Type | Description |
|---|---|
| Hair with roots | Hair strands with visible root material |
| Toothbrush | Recent toothbrush with residue |
| Nail clippings | Fingernail or toenail clippings |
| Chewing gum | Chewed gum with saliva |
| Cigarette butts | Used smoking filter |
| Clothing | Small fabric item |
| Licked envelope | Envelope flap exposed to saliva |
| Licked postage stamp | Stamp with saliva seal |
| Mucus on tissue | Sputum or facial tissue |
| Ear wax | Cotton swab with earwax |
