At the end of August, the police received a call that a man had looked in through windows in homes on the lower floor in Blackeberg.
On September 16, a woman was assaulted and raped in her home.
Technical traces, including DNA from the perpetrator, were secured after the crime but did not hit the police's DNA register.
On Sunday, the police arrested a suspected perpetrator and the next day the DNA answer came that the man could be linked to the crimes in Blackeberg.
The arrested man is currently suspected of rape and a number of sexual harassment.