71.   Hard evidence that young people are turning to heroin is even sketchier.

72.   Hard evidence was lacking in the debate, said Chavalit.

73.   Hard macroeconomic evidence of these things is admittedly still elusive.

74.   Hard evidence is sketchy.

75.   Have they backed up any of those smears with hard evidence?

76.   He has found no hard evidence that infrasound, frequencies too low to hear, can cause any debilitating effects, and is convinced infrasound weapons will never work.

77.   He tried to verify the rumor through musicians he knew in Kiev and Odessa, but no hard evidence turned up.

78.   Hristov believes the head is the first hard evidence of pre-Hispanic transoceanic contacts between the Old and New Worlds.

79.   If the wife has no hard evidence that her husband has been cheating, the opinion allows police to help her obtain it.

80.   If investigators find hard evidence of fraud, Spence said, the board will try to negotiate better deals on current leases and contracts and possibly cancel some leases.