A German community near the city of Frankfurt is investigating at least 30 cases in which residence documents were issued to foreigners under dubious circumstances. “It is the case that indications have been submitted to the head of the local authority to the effect that irregularities have occurred in the context of the work of the department dealing with foreigners,” a spokesman for the town of Bad Homburg said on Sunday, in response to a query. The indications were being investigated in cooperation with an independent legal practice specializing in compliance with the regulations, he said. …