Unfortunately, it does not appear any rights were violated if they had a search warrant.
If a window was broken in the process, I suggest you can talk to the Chief and tell them you need them to repair it - or at least pay the deductible from your Homeowners to have it repaired. Call your insurance
company and see what they suggest is the best way to proceed with that
The fact that they took your sister in for questioning is not a violation. She did not have to go, of course. They would have needed an arrest warrant. But they do not have to tell her that. Once she is there, she does not have to talk to them without an attorney. But unless she is "arrested" her rights do not have to be read. If she is arrested, then her rights should be read because any evidence obtained after the arrest can be used and so the police need to be certain she is given Miranda. But she was not arrested. She was detained at the legal 72 hour limit.
The fact that they read your brother his rights, means he was arrested and so they were not going to interview or interrogate him until he had a lawyer present. If they had all the evidence they needed then they would not have to Mirandize him because they have the evidence and no need to interrogate him further. IF they did, however, without reading rights then that information could arguably be inadmissible.
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