The burglar who is patient enough to bang a hole in the glass will find it bordered by a barrier of jagged glass icicles. Even in prestige locations, burglar-resistant glass offers protection. It can be used in stores selling high value merchandise, such as cameras, furs, and jewelry. In larger cities, agencies offer watch dog service on a nominal hourly basis. An owner-manager can use these dogs on a spot check basis one or two night a week to deter burglars.
Word soon gets around that a store is using watchdogs, and burglars cross the store off their list.
The sight and sound of an angry watchdog makes them afraid. Private Police Patrols. A private police patrol can be used to supplement the public police force when it is undermanned and overworked. A private patrol can discourage burglars by checking the store during the night. In either case, their prompt notice to the police increases the likelihood of catching the culprit and recovering your merchandise and money.