They were "aggressiveness" by police confronting protest marches and forced evictions of people who have defaulted on mortgages or are living in squatter camps, ThinkSpain reported Thursday.
The report cited two cases where police violence appears to have caused death or serious injury. Angela Jaramillo suffered a fatal heart attack three months after she allegedly was beaten by police during a peaceful demonstration while Paloma Aznar, a reporter who was wearing identification, lost an eye after being hit by a rubber bullet.
In the report, Amnesty International said it is difficult for victims of police brutality to bring a legal case and the government has shown little interest in investigating allegations.
The government has also failed to deal with the human consequences of Spain's economic meltdown, the group said. It said it first mentioned forced evictions in its 2011 report.
The report also cited Spain's failures in dealing with domestic violence and its denial of healthcare to immigrants.