News In Brief

Unions that are complaining bitterly of a pro-business bias in the National Labor Relations Board added another case to their growing list April 29 when the board ruled that employers can, in some situations, question workers about labor organizing campaigns.

The decision, which reversed a 1980 NLRB ruling, was by a 3-to-1 vote, with three appointees of President Reagan in the majority.

It said the NLRB will revert to a policy in effect 30 years ago and would consider whether questioning is legal, case by case, on a basis of whether it tends to ''restrain, coerce, or interfere with rights guaranteed by law.''

Unions contend that this will make organizing more difficult.