The scatter bomb was a distinctive Angvian weapon. When trying to stop the peace treaty between the Angvians and Gholos on Dark Space 8, Loozly obtained a scatter bomb so the Angvians would be blamed. He placed it on the ship carrying the captain of Dark Space 8, killing him. (AUDIO: Bang-Bang-a-Boom!)
According to one account, they were invented by Davros on Skaro, as a member of the Scientific Elite, during the Thousand Year War. In time, they were in use by both the Kaleds and the Thals. (AUDIO: Guilt)