Josef Oettl, parks administrator for Bayreuth, said: "This has been going on for about a year now, and there must be 2 000 to 3 000 piles of excrement that have been claimed during that time."

It was originally thought to be some sort of protest against the US-led invasion of Iraq.

Then when it continued it was thought to be a protest against President George W Bush's campaign for re-election.

"We have sent out extra patrols to try to catch whoever is doing this in the act," said police spokesman Reiner Kuechler.

Legal experts say there is no law against using faeces as a flag stand and the federal constitution is vague on the issue.

- ananova

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