We've been known to call the police in certain circumstances, but we'd better have a really good reason.

However, in certain circumstances, its action may be more general.

A company may also still need to hold one in certain circumstances.

And if only under certain circumstances, what might these be?

Trade union officials and members have rights to time off under certain circumstances.

Let us be clear: patients have the right to move under certain circumstances.

In certain circumstances, one can be more powerful than the other.

May be available in a limited way under certain circumstances.

Financial pressure, though effective in certain circumstances, is not enough.

And there are certain circumstances in which we can do that.