Also according to "Shinsen-gumi Shimatsuki" written by Kan SHIMOZAWA, Niimie gave himself over to a life of debauchery and neglected his duties and repeatedly extorted money from citizens in the name of corps' expense.
子母澤寛の『新選組始末記』によっても新見は遊蕩に耽って隊務を怠り、隊費と称して民家から強請り（ねだり）を繰り返していたという。