Timecop

Timecop is a 1994 science fiction action film directed by Peter Hyams and cowritten by Mike Richardson and Mark Verheiden. Richardson also served as executive producer. The film is based on Time Cop, a story written by Verheiden and drawn by Phil Hester and Chris Warner which appeared in the anthology comic Dark Horse Comics, published by Dark Horse Comics.

By 1994, time travel has been discovered and used for illicit purposes. The U.S. government creates the Time Enforcement Commission TEC to police the use of time travel. Senator Aaron McComb offers to oversee the commission. Police officer Max Walker is offered a position in TEC which he takes. When he returns home that evening to tell his wife Melissa the news, he is attacked by unknown assailants and thrown out of his house. He recovers just as his house explodes, killing Melissa.Ten years later, Walker remains a TEC agent. TECs supervisor, Commissioner Eugene Matuzak, orders him to stop his former partner Atwood from making money illegally on the U.S. stock market crash in 1929. In the past, when Walker arrests him, Atwood admits he was doing this for McComb, who is seeking funds for his upcoming presidential run. Atwood, fearing that McComb will kill his ancestors and erase him from history, attempts to jump to his death, but Walker catches him and returns with him to 2004. Atwood refuses to testify, and they are forced to return him to 1929 in his midleap, and Atwood dies from the impact. ........

Source: Wikipedia