...specified federal agents may "make arrests without warrants for any offense against the United States committed in their presence, or for any felony cognizable...arrested has committed or is committing such felony." On its face this provision authorizes federal agents to make warrantless arrests anywhere, including...

..."performing duties related to the inspection of postal matters" to "make arrests without warrant for felonies cognizable under the laws of the United States if...to be arrested has committed or is committing such a felony." By regulation, 39 CFR § 232.5 (a) (3) (1975), and in identical language, the Board of Governors...

...firearms and make arrests without warrant for any offense against the United States committed in his presence, or for any felony cognizable under the laws of the United States if he has reasonable grounds to believe that the person to be arrested has committed or is committing...

...authority of the United States and make arrests without warrant for any offense against the United States committed in their presence, or for any felony cognizable...arrested has committed or is committing such felony." SEC. 2. Section 3107 of title 18, United States Code, is amended to read as follows : "The Director,...

...have the power to make arrests without warrant for any offense against the laws of the United States committed in their presence or for any felony cognizable under the laws of the United States in cases where such felony has in fact beeii or is being committed and they have reasonable grounds...

...have the power to make arrests without warrant for any offense against the laws of the United States committed in their presence or for any felony cognizable under the laws of the United States in cases where such felony has in fact been or U being committed and they have reasonable grounds to...

...cognizable under the laws of the United States committed outside the officer's presence if the officer has reasonable grounds'» to believe that the person to be arrested has committed or is committing a felony; and (4) perform any other law enforcement duty that the Secretary of the Treasury may designate....

...arrests without warrant (A) for any offense against the United States committed in his presence, or (B) for any felony, cognizable under the laws of the United States, if he has probable cause to believe that the person to be arrested has committed or is committing a felony;...

...the laws of the United States in cases %vhere such felony has in fact been or is being committed and they have reasonable grounds to believe that the person to be arrested has committed or is committing it," 10 and they are also given the same powers as sheriffs in the same state may have, by law, in...

...have the power to make arrests without warrant for any offense against the laws of the United States committed in their presence or for any felony cognizable under the laws of the United States in cases where such felony has in fact been or is being committed and they have reasonable grounds...