101.   The DNA detective work capped a five-year investigation of the ecology, behavior and genetics of the ants.

102.   The father of one of the victims wants more relentless detective work than the police will provide.

103.   The detective work needed to identify such proteins will be carried out at the institute.

104.   The discovery of the contaminated letter, officials said, appears to have resulted from a striking bit of technological detective work.

105.   The first half of each hour is devoted to the detective work.

106.   The gigantic jigsaw puzzle that emerged called for sustained detective work.

107.   The quick arrest of Baz after the shooting was hailed at the time by the police as a textbook case of dogged detective work.

108.   The plot twists are amazing, yet never out of place in this thriller full of intriguing characters and crafty detective work.

109.   The process required some detective work.

110.   The true story has recently come to light through the detective work of Jack Bass, a distinguished Southern historian and political reporter.