The Fund for Fair and Just Policing is a left-of-center criminal justice and policy policy advocacy group and a project of Tides Advocacy, a major incubator of new left-of-center advocacy groups and the 501(c)(4) arm of the pass-through entity the Tides Foundation (part of the Tides Nexus of groups).
The Fund’s primary focus is on New York City, where it is a funder of the anti-police organization Communities United for Police Reform. CUPR, backed by Fund for Fair and Just Policing resources, challenged the controversial “stop and frisk” policies enacted by New York City Mayor Michael Bloomberg (D) during his tenure from 2001 to 2013. 
The Tides Foundation, a prominent left-of-center pass-through funding entity, began to take an interest in policing policy in 2010. Together with its 501(c)(4) “sister” organization, Tides Advocacy (formerly “The Advocacy Fund”), began working with center-left organizations in New York City to promote police reform efforts. Tides set up the Fund for Fair and Just Policing to direct resources to policing policy efforts. 
Tides (via the Fund for Fair and Just Policing) sponsored a police reform briefing in 2015 with the Open Society Foundations, North Star Fund, Atlantic Philanthropies, to celebrate its successes. The coalition created connections with labor unions, expansionist-immigration groups, LGBT-interest organizations, and other left-wing constituencies and organizations. The coalition also promoted community change in addition to legislative change. 
Communities United for Police Reform
In 2015, the Fund for Fair and Just Policing granted $8 million to support Communities United for Police Reform (although as a project, the funds were paid out by Tides Advocacy). CUPR opposes police practices such as “stop and frisk” and has supported calls to defund the New York City Police Department. 
The Fund and CPR began working to end or restrict the use of “stop and frisk.” The two organizations believed that stop and frisk was disproportionately used on ethnic minority New Yorkers. 
CUPR is a fiscally sponsored project of North Star Fund, a New York City-based organization that supports left-wing organizations.  Member organizations of CUPR include the advocacy groups Color of Change, the New York Civil Liberties Union, Drug Policy Alliance, Girls for Gender Equity, NAACP Legal Defense and Educational Fund, Citizen Action of New York, and the Center for Popular Democracy. The organization is partnered with many other left-wing groups such as Amnesty International USA, Black Lives Matter NYC, Brooklyn Democratic Socialists of America, Children’s Defense Fund-New York, Lambda Legal, and the Working Families Party. 
John Jay College
The Fund for Fair and Just Policing financed a website launched by John Jay College’s Center on Race, Crime, and Justice. The website contained information published by opponents of “stop and frisk.” The website worked with closely with CUPR, academics, and other activist organizations. The website contained reports, videos, and articles on the legality, impact, and effectiveness of stop and frisk. It also contained alternatives to stop and frisk. The website also featured a feature for scholars to submit reports. The website also contained links to the New York Civil Liberties Union, the Center for Constitutional Rights, the Consortium for Police Leadership in Equity, the Public Science Project, the Sentencing Project, and the Urban Institute. 
The Fund for Fair and Just Policing is a project of the 501(c)(4) Tides Advocacy; as such, it does not file annual Form 990 reports with the IRS and little of its internal finances and few of its donors are known.
The Fund was founded in 2011 with support from the Bermuda-based foundation Atlantic Philanthropies and the Open Society Foundations, one of the foundations funded by billionaire George Soros.  In 2013, Atlantic Philanthropies donated $2.2 million to the Fund via one of its U.S.-based 501(c)(4) groups, the Atlantic Advocacy Fund. The grant was used to support opposition to “stop and frisk.” 
As of 2015, Tides senior advisors Edward Wang and Kathryn Snyder were listed as the contacts for the fund.