NEW : Busch attorney says the allegation is a lie made up by a woman after a relationship ended . Police in Delaware , Dover , say they learned of the allegation against Stewart-Haas Racing on Sunday . Police are now investigating this allegation , but have n't released any details . Busch 's team , Busch , takes the claim `` very seriously , '' says spokesman .
NEW : Busch attorney says the allegation is a lie made up by a woman after a relationship ended . Police in Dover , Delaware , say they learned of the allegation against Busch on Wednesday . Police are now investigating this allegation , but have n't released any details . Busch 's team , Stewart-Haas Racing , takes the claim `` very seriously , '' says spokesman .