Does the date of the source match the level of currency you need for your paper?
yes it does all the information that i have found on the internet today matched to the current gang related activities that i am doing my project on.

Is the author a credible source?
some of my authors are know through out the union tribune and other are not known when i looked them up on the internet

Is the source relevant to your thesis or question, i.e., useful?
yes a few are relevent to my thesis and others are jus useful in supporting my thesis