Recent break-ins in which jewellery and computer equipment were stolen could be the work of the same offender.
Police are linking a number of burglaries in the Pound Hill area of Crawley.
A house in St Hilda's Close was broken into when a rear ground-floor window was forced open.
The house was ransacked and Christmas presents, jewellery and Nokia mobile phones were stolen between December 7 and December 9.
Police particularly want to trace the driver of a white van parked in the road in the early hours of Sunday, December 9.
A house in Blackheath was burgled on December 7 when again, a rear ground-floor window was forced open.
Antique jewellery was taken, along with boxed perfume, crystal ornaments and money raised for charity.
Officers are keen to speak to a man seen in the area, possibly selling door to door.
In the third raid, in a house in Grattons Drive, more than £8,000 of property was taken, including a set of 12 golf clubs in a blue bag, worth £2,200.
A silver Toshiba laptop computer worth £1,200, a video camera worth £1,100 and a watch worth £400 were among items taken.
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