I have been in criminal detention for a week. Can I ask a lawyer to get bail pending trial now?

You can apply for bail pending trial, but you don't need a lawyer to get bail pending trial, and your family members can also apply to the public security organ for bail pending trial. Just write an application for bail pending trial and hand it over to the public security organ, but it is up to the public security organ to decide whether to agree to bail pending trial. But if you have other legal problems, or you don't know how to deal with them yourself, you can also find a lawyer to deal with them.