Lindsay Lohan's Accuser Lawyer Dredges Up LiLo's Past 'Once a Liar, Always a Liar'

4/12/2012 9:15 AM PDT

Lindsay Lohan's Accuser -- Lawyer Dredges Up LiLo's Criminal Past

The lawyer for Lindsay Lohan's latest accuser just went off on live television -- claiming the actress has proven time and time again ... she spews nothing but lies ... and her "I was at home" excuse is no exception.

Mark Haushalter -- the lawyer for Lindsay's assault-accuser Marisa Dugas -- appeared on Good Day L.A. this morning, blasting Lindsay's alibi that she couldn't have attacked his client at The Standard Hotel last weekend ... because she was at home watching TV.

Mark said, "Let's not forget Lindsay Lohan has a drug addiction problem, a drinking problem, and has been convicted of crimes of dishonesty."

According to Mark, Lindsay's excuse counts for jack squat -- because "Once a liar, always a liar."