Transcript for Baltimore Police Department under fire
this Thursday night, and to the controversial videos involving the malt mor police accuses odd evidence tampering, and tonight, the video that shows questionable activity. But the police say after a review that it proves the officer did what it was supposed to do. Here's ABC's Pierre Thomas with the tape. Reporter: Baltimore police under intense scrutiny after police seemed to have planted drugs earlier this year. Two incidents recorded by police cameras. This one, after a police officer planted marijuana, and this one under the microscope after a third incident. The prosecutor's office now doubting his credibility. In this video, the officer pursuing a man with an outstanding warrant for drugs. Bodycameras rolling. The suspect was apprehended and then he takes off in handcuffs. Police in hot pursuit, catching hip after running into the woods. I have to search you. Reporter: The police don't find any drugs initially, but went to the scene after listening to a jailhouse call that allegedly directed them to the drugs. In the video, you see an officer pick up the drugs, but then puts them back down, only to pick them back up again. The officer claims he did that because he forgot to turn his bodycamera on, but prosecutors are concerned it was evidence tampering dropping 43 cases connected to this officer. Today, a spirited defense from police. There is nothing questionable about this. The officers did exactly what I and the community expect of him. Reporter: David, police typically turn on their cameras these approach a crime scene, and leave them on for the duration. Pierre Thomas from Washington. Thank you, parkway.
This transcript has been automatically generated and may not be 100% accurate.