21.   Anthrax exposure by laboratory workers handling spores has occurred before.

22.   Any devaluation, analysts say, would certainly not occur before the Presidential elections in May.

23.   As for the prevailing conservatism, Wilson adds, these events occurred before the French Revolution and the panic it provoked among the German states.

24.   At times, looting has occurred before their eyes.

25.   Because the chemicals used in lethal injection damage organs, an organ transplant would have to occur before execution.

26.   A federal court injunction prevents the inclusion of offenders whose crimes occurred before that date.

27.   A federal appeals court disagreed, however, and said the new law should apply even though the allegedly fraudulent acts occurred before its enactment.

28.   A date for a second expedition has not yet been firmed up, although U.S. officials said they hope it can occur before the winter freeze sets in.

29.   A trial is set for next April but a settlement will probably occur before then.

30.   All of the transactions mentioned in the indictment occurred before the Highwoods acquisition.