Related Clues:
- Cover stories
- Whodunit staples
- Whys and wherefores
- 'I was home asleep at the time of the murder' and others
- Contaminates
- Cover-ups
- Means of exoneration
- Suspect stories
- Suspects' stories
- Investigation factors
- Legal excuses
- Excuses from suspects
- Toxicologist's concerns
- Nicotine and alcohol, for two
- ''The dog ate my homework'' and the like