Capital is another business necessity, even harder to come by than expertise.

Another is over how employers could show there was a "business necessity" for the practice.

The employer, he said, must justify those practices by demonstrating their business necessity.

"Many friendships here are borne of a business necessity, which I wouldn't call a friendship."

In most cases, this will be a justification based on business necessity.

Yes, the employer can include a foreign language requirement if it is justified by business necessity.

By 1985, following all the acquisitions, rationalisation had become a business necessity.

"It's unlawful except as a business necessity or some other justification," he said.

The club rule that led to her dismissal, he said, was a "business necessity."