My question involves employment and labor law for the state of: California

What is the policy on employee paychecks? We were just informed by our supervisor that we will not be getting paid until this Monday, when our regular pay schedule should have our checks issued to us tomorrow. Not explanations given, we just have to wait.

In the past we have had employees try to cash their checks and the bank refuses for insufficient funds. Are there any penalties for either of these?

We are also required to be at our desk and clocked in at least 5 minutes before our shifts begin (can not clock in more then 10 minutes early), however our paychecks never reflect the extra minutes that we are actually clocked in. Which would be minimum additional 25 minutes per week, and 50 minutes per pay period.