"Berlin is using every means at its disposal to enforce tenant protection in the city," Senator Gaebler explained. "With the Rent Scan, we want to focus on landlords and take decisive action against rent gouging." The goal is fairness for tenants, but also for law-abiding landlords. According to the rent cap law, the rent for newly leased apartments may not exceed the local market rate by more than 10 percent. The basis for this is the rent index. There are certain exceptions, such as for the initial leasing of apartments in new buildings. If the rent is more than 20 percent above this level, it is considered excessive. This can be punished as an administrative offense with fines of up to 50,000 euros. If a rent more than 50 percent above the local comparative rent is demanded, it is considered a usurious rent. This can constitute a criminal offense.