| Answer | Crossword Clue |
|---|---|
| SONAR | Under-water detection aid |
| LASER | Latent-fingerprint detection aid |
| Answer | Crossword Clue |
|---|---|
| SONAR | Under-water detection aid |
| LASER | Latent-fingerprint detection aid |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.