Investigation
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Investigation
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- Death + Investigation
- Building failures + Investigation
- Smuggling + Investigation
- Political crimes and offenses + Investigation
- Sex crimes + Investigation
- Computer crimes + Investigation
- Aircraft accidents + Investigation
- Sexual harassment + Investigation
- Murder + Revenge + Investigation
- Parapsychology + Investigation
- Space shuttles + Accidents + Investigation
- Airplanes, Military + Accidents + Investigation
- Boating accidents + Investigation
- Rape + Investigation
- Missing persons + Investigation
- Assassination + Investigation + History
- Child sexual abuse + Investigation
- Art thefts + Investigation
- Drug traffic + Investigation
- Serial murders + Investigation
- Murder + Investigation + Press coverage
- Assassination + Investigation
- Human trafficking + Investigation
- Theft + Investigation
- Murder + Investigation
- Kidnapping + Investigation
- Falls (Accidents) + Investigation
- Railroad accidents + Investigation
- Commercial crimes + Investigation
- Occultism + Investigation
- Murder + Investigation -- California -- San Francisco -- Fiction
- Smuggling + Investigation -- Fiction
- Murder + Investigation -- Ireland -- Fiction
- Murder + Investigation -- Great Britain -- Fiction
- Murder + Investigation -- Wales -- Drama
- Missing persons + Investigation -- Germany -- Berlin -- Drama
- Missing persons + Investigation -- New York (State) -- Fiction
- Murder + Investigation -- Comic books, strips, etc -- Juvenile fiction
- Missing persons + Investigation
- Murder + Investigation -- California -- Los Angeles County -- Fiction
- Murder + Investigation -- Mississippi -- Drama
- Murder + Investigation -- Oklahoma -- Tulsa -- Drama
- Missing persons + Investigation -- New York (State) -- Case studies
- Human trafficking + Investigation -- Minnesota -- Fiction
- Murder + Investigation -- England -- Dorset -- Drama
- Murder + Investigation -- New York (State) -- New York -- Fiction
- Assassination + Investigation -- United States -- 19th century
- Murder + Investigation -- Greece -- Fiction
- Murder + Investigation -- Washington (State) -- Chehalis -- Case studies
- Art thefts + Investigation -- Fiction
- Kidnapping + Investigation -- Drama
- Murder + Investigation -- Singapore -- Fiction
- Murder + Investigation -- Arizona -- Fiction
- Murder + Investigation -- Austria -- Vienna -- Drama
- Kidnapping + Investigation -- Kentucky -- Case studies
- Missing persons + Investigation -- Young adult fiction
- Missing persons + Investigation -- England -- Fiction
- Missing persons + Investigation -- England -- London -- Fiction
- Murder + Investigation -- Great Britain -- Case studies
- Aircraft accidents + Investigation -- Fiction
- Murder + Investigation -- England -- Hampshire -- Fiction
- Murder + Investigation -- China -- Fiction
- Murder + Investigation -- California -- Orange County -- Fiction
- Murder + Investigation -- England -- Lancashire -- Fiction
- Murder + Investigation -- England -- Pennine Chain -- Fiction
- Railroad accidents + Investigation -- Fiction
- Missing persons + Investigation -- United States -- Fiction
- Missing persons + Investigation -- Drama
- Murder + Investigation -- Tennessee -- Knoxville -- Fiction
- Murder + Investigation -- England -- Fiction
- Missing persons + Investigation -- California
- Missing persons + Investigation -- Mississippi -- Fiction
- Missing persons + Investigation -- Maryland -- Drama
- Assassination + Investigation -- Israel -- Tel Aviv -- Fiction
- Murder + Investigation -- Wyoming -- Drama
- Murder + Investigation -- Sweden -- MalmoĢ -- Drama
- Murder + Investigation -- New York (State) -- New York -- History -- 18th century
- Murder + Investigation -- Texas -- Fort Worth -- Fiction
- Murder + Investigation -- England -- London -- History -- 20th century -- Fiction
- Computer crimes + Investigation -- Juvenile literature