Not everyone in the resort at the time was interviewed; holidaymakers later contacted the British police to say no one had spoken to them.  The crime scene was not secured. Police took samples from Madeleine's bedroom, which were sent to three forensic labs in Portugal. It was reported on 1 June 2007 that DNA from one "stranger" had been found, but around 20 people had entered apartment 5A before it was closed off, according to Chief Inspector Olegário de Sousa of the PJ.  According to Madeleine's mother, an officer placed tape across the doorway of the children's bedroom, but left at 03:00 without securing the apartment.  The PJ case file, released in 2008, showed that 5A lay empty for a month after the disappearance, then was let out to tourists before being sealed off in August 2007 for more forensic tests.  A similar situation arose outside the apartment. A crowd gathered by the front door of 5A, including next to the children's bedroom window—through which an abductor may have entered or left—trampling on evidence.  An officer dusted the bedroom window's exterior shutter for fingerprints without wearing gloves or other protective clothing.