| A | B |
|---|
| DVLA | Swansea |
| Loops Whorls Arches Composite | Finger prints |
| Lilac flame | Potassium ions |
| Green flame | Copper salts |
| Polarised light source | Strain lines in polythene bags |
| A B AB O | Blood groups |
| Analyse inks/dyes | Chromatography |
| Identical DNA | Identical twins |
| Electrophoresis | Obtain DNA profile |
| Universal indicator | Chemical for pH determination |
| Nichrome wire loop | Clean in acid for flame tests |
| VIN | Vehicle Identification Number(on chassis etc) |
| Latent, Plastic, Visible | Types of prints |
| Carbon. Aluminium oxide, di-chromatic | Finger print powders |
| Tyre marks and shoe prints | Photo and takecasting |
| Potassium dichromate | test for alcohol |
| Turns limewater cloudy | carbon dioxide from carbonates |
| Limestone/marble/chalk | all calcium carbonate |
| Electron microscope | Gives greater magnification and clarity |
| Silver nitrate | Chlorides (white ppt) |
