Police Do Nothing for Occupy Protests All Over Two incidents near D.C.'s convention center Friday are increasing tensions between the Occupy D.C. protesters and local police. Four people were struck in two separate incidents as they protested in blocked off streets. In one incident, the protesters say the driver aimed for them. As a result of the incidents, police say they will change how they deal with Occupy D.C. demonstrators who block traffic. D.C. Police spokeswoman Gwendolyn Crump says "Our tactics will change and there will be stricter adherence to rules, as people have been injured." D.C. Police Chief Cathy Lanier tells WTOP that police "are going to have to require some compliance with traffic laws since we have folks being injured." Protesters marched to D.C. police headquarters Monday afternoon, accusing police of not properly investigating the hit-and-run incidents Friday evening. They say police did not talk to key witnesses or the victims. They also claim it was the same silver Lexus that struck protesters a block and a half apart. Protester Heidi Sippel says she was never questioned about the car that hit her, even after she asked to give a statement at the hospital. She says the car actually turned down the wrong lane to run her and her son over. Her pregnant wife was forced to jump out of the way of the oncoming car. Sippel was charged with obstructing traffic. Police did not charge the driver, saying two witnesses supported his account that the demonstrators jumped into the vehicle's path. Following the march to police headquarters, Sippel provided a statement to police. She urged others to come forward. The fourth victim, Georgia Pearce of Mississippi, was also at the protest. She says she was hit by the same Lexus at the convention center protests Friday. Police labeled Pearce's incident a hit-and-run. The time of Pearce's report is five minutes before a second police report shows that a silver Lexus hit three other demonstrators. A statement Monday from D.C. Police Chief Cathy Lanier states "MPD always considers information that is pertinent to the case. Any additional information or evidence that we receive will be reviewed and handled accordingly." In an earlier statement, Lanier also criticizes protesters for intentionally blocking streets, becoming "increasingly confrontational and violent toward uninvolved bystanders and motorists."