The report, published by the Cairo-based El Nadeem Center for Rehabilitation of Victims of Violence, alleges over 247 cases of police brutality during that period.
The deaths were mainly caused by live ammunition used to attack demonstrators, but included killings inside police stations, prisons and public areas.
In one incident, a woman was killed after being run over by a police car while officers were arresting her son. Police had also tortured her son and daughter.
The report also cites at least eight kidnappings that targeted political activists, many of whom were said to be tortured.
One of the sexual assault victims said a police officer tortured him in prison. The man filed a complaint against the officer who then tortured and raped the victim in his home in front of his wife following his release from prison.
Police launched a brutal crackdown on protesters during last year's uprising that toppled former president Hosni Mubarak.
Violence by security forces persisted during the rule of the Supreme Council of the Armed Forces (SCAF) which led the country from Mubarak's ouster in February 2011 until Mursi took over as president in June 2012.
Mursi, the country's first civilian and democratically elected president, has been widely criticized by activists and rights groups over his failure to confront the security apparatus over its continued abuses.
Last week Mursi attempted to ease public anger over a court's acquittal of 25 Mubarak loyalists suspected of orchestrating a vicious attack on protesters while riding on camels and horses in what became infamously known as the "Battle of Camel" by sacking the public prosecutor.
But the prosecutor, Abdel Meguid Mahmud, refused to resign, and Mursi eventually agreed to let him stay, compounding frustrations over Mursi's inability to improve the justice system.
Earlier this month, a leading rights group urged Mursi to "reform" the country's police and army after publishing two reports condemning human rights abuses by security forces.
The second report "highlights the brutal response by the police to protests, as well as the longstanding pattern of torture of detainees and the brazen disregard of the rule of law."
- Egypt top prosecutor refuses to resign after "Battle of Camel" acquittals
- Amnesty urges Egypt to reform police, army
River to Sea Uprooted Palestinian
The views expressed in this article are the sole responsibility of the author and do not necessarily reflect those of this Blog!