Time Crime is a science fiction novel written by H. Beam Piper, originally published in 1955.

The Paratime Police had a real headache this time! Tracing one man in a population of millions is easy--compared to finding one gang hiding out on one of billions of probability lines!

Time Crime first appeared in Astounding Science Fiction Magazine February and March 1955.

Henry Beam Piper (1904-1964) was an American science fiction author. He wrote many short stories and several novels. He is best known for his extensive Terro-Human Future History series of stories and a shorter series of "Paratime" alternate history tales. Piper's stories fall into two camps: stark space opera, such as Space Viking, or stories of cultural conflict or misunderstanding, such as Little Fuzzy or the Paratime stories.