They don't have this modifier.
The question is how is it possible to split the code of a token to 2 deployed contracts.
You said the first deployed contract may be as a token.
The second as a crowdsale.
Now the question: How the contract of the crowdsale have permissions and access to change balances that exist in the 1st contract?
Please take a minute to help make smart contract development better for everyone. Im conducting a short survey of only 9 questions.
Thanks for your time,