The state can not need you to penalty your rights, but in this case it is in your best interests to do so. They need you to sign the waiver so that once on trial, they may conduct searches of your person and your property whenever they wish. This is so they may make sure compliance with your trial. If you don't sign the waiver, you will be denied trail. You can choose not to sign the waiver, but then your trail will be rejected and you will serve your sentence in jail. It's your choice.