In 99 incidents the culprits were not found. The incidents are difficult to solve, since the "culprits don't leave a signature," says Van der Valk. Violence against mosques is relatively rare in the big cities, though relatively many Muslims live there, says the researcher.
The Discrimination Internet hotline also gets regular reports of racist statements against Muslims. A spokesperson said that by Friday there were 317 reports of "hate against Muslims", which made up 20% of the total number of reports this year. [Islam in Europe] Read more