51.   The proper response to the Kennedy and Bono accidents is tougher enforcement of safe skiing rules by ski patrols.

52.   The tougher enforcement measures also include satellite tracking to prevent cheating, increased inspections and a minimum turbot size.

53.   Tobin hinted a compromise might be possible with the EU accepting tougher enforcement of the catch limits in return for its fishermen getting a higher quota.

54.   Although his plan includes no new taxes, he called for tougher enforcement of tax laws on rich pensioners who retire to tax havens.

55.   Earlier this year, following the murder of a Toronto policeman, Marchi promised tougher enforcement of expulsion orders against immigrants who are convicted of serious crimes.