Ne deletion is arguably the best studied variable in French. Despite differences in overall rates of deletion, linguistic factors governing deletion pattern vary similarly in most varieties. The comparative study presented here offers a new perspective by using ne deletion as a criterion to differentiate two closely-related languages, French and Picard. While patterns of ne deletion in the variety of French under study are similar to those found in other French varieties, ne in Picard behaves differently from its French counterpart, with respect to both frequency of deletion and linguistic factor effects. The paper investigates patterns of ne deletion in three bilingual speakers for whom the paper has both written and oral Picard, as well as spoken French. It compares their French data with those of monolingual French speakers from the region. This study contributes additional linguistic evidence for the claim that Picard and French are distinct languages.