By Jeremy Main

(FORTUNE Magazine) – The Church of Scientology, one of the cultish groups that have moved into management training (''Trying to Bend Managers' Minds,'' Fortune, November 23, 1987), believes every man's mind is cluttered with ''engrams,'' or bad memories. The Reverend Heber Jentzsch, who presides over the wealthy worldwide church from its headquarters in Los Angeles, just collected enough bad memories to last a lifetime.

Jentzsch had hardly settled into a conclave of church members in Madrid when the Spanish police put the cuffs on him and jailed him and ten others. Jentzsch was held for about three weeks without being charged and was then released. But he has been told not to leave the country until investigations are complete. Since moving into Spain in 1979, the Scientologists have established a network of centers to treat drug addicts and churches to teach Scientology. But Spanish authorities saw it another way. They accused Jentzsch of coercion, fraud, tax evasion, and illegal currency transactions. Scientologists have already been the target of government probes in the U.S., Canada, and Italy.