In 2014 Newhouse acted for the family of Andrea Pickett, an Aboriginal Australian who was brutally murdered by her husband. The family took action against the Western Australian Police and the WA Department of Child Protection. Newhouse has acted in many inquests for Aboriginal Australians who died in custody. In 2015-6 he acted for the Deaths in Custody Watch Committee of WA in the Inquest into the death of Ms Dhu in police custody. He also acts for the family of David Dungay Jr who died in Long Bay Prison in December 2015. He is also assisting the family of the late Wayne Morrison who died in Yatala Prison in September 2016. Newhouse has acted for Aboriginal Communities in WA and the Northern Territory, participated in many rallies and spoken at different events defending the rights of Indigenous Australians, refugees, ethnic minority groups and genocide survivors and denouncing all forms of racism and anti-antisemitism and human rights abuse.