What can the principal, staff , Sro do if you refuse to give then your phone when you get caught , because it s my new plan?

So I m wondering I m in 8th grade I get my phone taking aw ot and it s my 3rd time next time I have to have my mom come get it so instead because being my I have to check Fb and Twitter a lot I m just instead of giving the teacher my phone so he/she can take it to the office I m going to refuse to give it to them the real question is they can t forcibly take it away can they because my mom could care less if I get suspended for a silly thing as a cell phone and yea her comes the part were people yell bad parenting but the thing is I get good grades and still play on my phone .........