By Curtis Skinner

SAN FRANCISCO (Reuters) - Three former judges examining accusations of racial bias by police in San Francisco said in a report released on Monday that black and Hispanic people were more likely to be searched without their consent by officers than whites and Asians.

The panel released its report as the United States reeled over the slayings of five police officers in Dallas who were on duty at a protest over the slayings of black men in Baton Rouge and Minneapolis.

"The panel found indications of institutionalized bias and institutional weaknesses in the department," Anand Subramanian, executive director of the Blue Ribbon Panel on Transparency, Accountability, and Fairness in Law Enforcement, said at a news conference.

The panel, consisting of retired state Supreme Court Justice Cruz Reynoso, retired Superior Court Judge LaDoris Cordell and retired federal Judge Dickran M. Tevrizian, was convened by San Francisco District Attorney George Gascón in March 2015 after racist text messages sent and received by San Francisco officers were made public.

San Francisco Police said in a statement after the report was released that they appreciated the panel's efforts and would review the findings before turning over their analysis to Justice Department.

The panel said in a 240-page report that blacks and Hispanics were more likely to be searched after traffic stops than whites or Asians yet less likely to be carrying contraband.

According to the report, of all non-consensual searches after traffic stops, 42 percent in 2015 involved black motorists. The U.S. Census showed that in 2015, blacks made up less than 6 percent of the city's population of 865,000.

Hispanics, who made up about 15 percent of San Franciscans in 2015, accounted for 19 percent of non-consensual searches, while whites accounted for half the population, but 21 percent of non-consensual searches, the report said.

Asians made up more than a third of the population, but were searched without their consent fewer than 10 percent of the time, according to the report.

The report recommended that San Francisco's police department should improve its training on implicit bias, procedural justice and racial profiling, and called for stronger oversight.

The San Francisco Police Officer's Association called the report misleading and divisive.

"We're sitting on a tinderbox and Gascón is lighting a match," association president Martin Halloran said in a statement.

San Francisco's police department has been roiled by protests since December after the videotaped fatal police shooting of a black man.

The death of Mario Woods, 26, prompted a U.S. Department of Justice review of the police department.

(Reporting by Curtis Skinner in San Francisco; Editing by Sharon Bernstein)