A forensics team is carrying out investigations in Harefield as part of a murder probe.
Police have raided a home in Steep Close in connection with the murder of Mark Noke.
Officers have been in the area since yesterday, however, no one was at the property when they entered it.
They remain on the scene making enquiries.
A spokesperson for the county force said: "If anyone in the area has any concerns, they can speak to officers at the scene.
"Anyone with information that can assist our investigation can call us on 101, report via our website or contact Crimestopppers anonymously, quoting 44230077698."
Residents can also send information and CCTV footage online by going to www.mipp.police.uk/operation/44HC23W01-PO1 quoting the same reference number.
Mark died at a flat in Warburton Road, Thornhill, in the early hours of February 25.
Police say he was stabbed in the chest.
Four men have been arrested in connection with the 64-year-old's death.
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