21.   Investigators said they had placed Olin on their list of possible suspects weeks ago, but had held back from moving against him, apparently lacking evidence.

22.   Lacking evidence of life as it is actually lived, we lose hope, lose interest, grow both angry and sad.

23.   Lacking firm evidence, investigators have debated whether the Air-India crash was indeed caused by a bomb.

24.   Livestock industry representatives say the report lacks scientific evidence and is packed with old information.

25.   Livestock operators say the report lacks scientific evidence and is just another attempt by environmental groups to scare the public.

26.   Many cases are never prosecuted because nervous victims withdraw their complaints or because the police lack evidence, officials say.

27.   No one was charged because he lacked the evidence to obtain a conviction at trial.

28.   Officials said they lacked evidence to prosecute him for the murders.

29.   On the contrary, they insist, a belief can lack independent evidence and still be rational.

30.   Officials said they lacked evidence.