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Justin Bieber's mother is adamant she has no control over her son's bad-boy behavior as he doesn't want her around if she tries to crack down on his antics.

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The "Baby" star's legal problems have made him a regular in the headlines over the past few months -- he has been accused of spitting in the face of a neighbor who asked the Biebs to stop speeding around his California gated community in a Ferrari, while police in New York recently launched an investigation over claims his entourage was involved in a nightclub brawl.

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The teenager is now living away from his mother, Pattie Mallette, who no longer travels with her son on tour, and she insists she has to give the young star space.

Mallette tries to speak to the 19-year-old on the phone as much as possible, but fears they will fall out if she attempts to address his personal problems.

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She tells "When your kids hit a certain age your parenting style changes and it is hard letting go ... I've had to let him go a little bit and let him be independent. It is hard to not be able to control everything that your adult child does ... I text and call him every day. I definitely want to know everything that he is doing and what he is going through, so I try to talk to him as much as he'll let me. I mean, he's on tour and being pulled in a million different directions, but we talk as much as he is able ...

"A lot of people might think that I have my head in the sand or that I am oblivious to the things my son is doing. I know who my son is and I don't always agree with every single thing that he does, but I don't necessarily have to address that with everyone else.

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"He's my son and I have to respect he is not going to want me going around being 'that mom,' talking about his behavior"