Michael Sibert went to meet Mike Howitt in August, before he set off on his 3-month, 8000 mile hitchhike.
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Michael Danaher, 50, killed book dealer Adrian Greenwood at his home over a £50,000 first edition copy of Wind In The Willows.
The crack down could see offenders end up with a £5,000 fine or even a jail sentence.
The British Hedgehog Preservation Society are urging people to think of the wildlife around them as Halloween and bonfire night approaches.