Kreacher will be releasing names of Death Eaters. There may be some names in there of people who are not DEs, too. You can blame Walburga Black for being such a LOUD MOUTH around him as well as Regulus making suggestions before taking the vow. But just so we're clear, the Ministry will not take the word of a house-elf seriously so there's no fear of legal comeuppance. Moody will be side-eying you, though, but that's only because he's SUSPICIOUS.
Let me know if you have any objections to this. ALSO. If you would like your character falsely accused, let me know below.