Officers who are investigating the death of Daniel Baker in South Normanton on Friday July 19 have asked the public to help find the weapon that was used to kill him.
Police believe the weapon is a carving-type knife and have asked locals and dog walkers to check their gardens, hedgerows and paths.
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It will be largely cloudy through the evening and overnight in the west, with further spells of light rain or drizzle.
It will be cloudy this evening with occasional outbreaks of light rain at times before becoming drier later tonight.
Photos from the scene of a disturbance involving a group of men in Leicester after which a sixteen year old boy died.