11.   Police officials readily acknowledge they are pursuing what they call aggressive enforcement against the illegal liveries, which have proliferated in recent years.

12.   Police officials, however, say the ticketing is the result of aggressive enforcement of traffic laws against everyone.

13.   She also asked about sanctions that the government considered but did not include in the settlement and how the government can assure aggressive enforcement.

14.   She leaves a record of aggressive enforcement efforts and mixed results.

15.   Some say the agency still prefers negotiated settlements to aggressive enforcement, resulting in lower fines and penalties.

16.   That sat well with regulators in states known for aggressive enforcement of securities laws.

17.   The fine and suspension add to the recent spate of aggressive enforcement actions from the commission.

18.   The severity of the strikes reflected the more aggressive enforcement of the zones that President Clinton approved last month.

19.   Throughout the city, the newly aggressive enforcement led to heated debate, most notably after the killing of Amadou Diallo.

20.   He suggested one acceptable option -- not now included -- might be a combination of conventional gates and flashing lights with aggressive enforcement and public awareness.