21.   Cyber-crime, for example the fraudulent use of credit cards on the net, presents particular problems for the police.

22.   Data integration is especially a problem for geographers because information synthesis is at the very heart of the discipline.

23.   Drink was always a problem for some executioners, though it doubtless provided a blessed relief from their horrific duties.

24.   Foreign policy will take a back seat to domestic problems for a while.

25.   Funding themselves through training remains a problem for many students, given the virtual demise of discretionary grants.

26.   Getting money out of the business poses problems for people who own corporations.

27.   Guaranteeing continuity in the casework of clients is a serious problem for a manager with a large team of volunteers.

28.   Henkel made the change-and that resulted in an unusual problem for the advance team.

29.   However, Nuttall has shown that this creates considerable problems for the interpretation of results in relation to, for example, class size.