It is capitalized at the beginning of the sentence or when it forms part of the proper noun or when it precedes a person's name or when it is used as a direct address.
Examples:
Agent Ford
Have you seen the report, Agent?
You should not capitalize agent unless it is part of someone's name. Otherwise, agent is just a common noun and doesn't require a capital letter.
It is capitalized when it is used as a title together with the agents name as in Agent Mulder.
US Border Patrol agent
No, you should not. You should only capitalize a word when it is at the start of a sentence or when it is a proper noun.
Yes
Unless it is the first word in a sentence, then you don't need to capitalize "tobacco."
No it shouldn't be capitalized.
US Border Patrol agent
No, you should not. You should only capitalize a word when it is at the start of a sentence or when it is a proper noun.
NO
No.
no
No
Yes
You only capitalize with if it begins a sentence. Example:With recent rains, crops should grow well.
Unless it is the first word in a sentence, then you don't need to capitalize "tobacco."
All the time
No.
At the beginning of a sentence.