How to recover shredded photographs? I've run a programme but it didn't pick them up?

I was beaten badly by an ex and I saved photographs - I took them on an iPad then dowloaded them onto my computer - so that later I could show the police. It was a month later that I was able to show the police as he wouldn't let me leave the house - but my ex had shredded all evidence of the photographs from the iPad and apple mac computer.
A month later my face was still bruised but not bad so no one knows how bad he beat me up.
The police said they would be able to get the photos back but he is so good on computers that I thought they couldn't - and then he'd be getting revenge on me - I was too scared to chance that they wouldn't have the evidence.

2 years later I need these photos to prove that my ex is dangerous and shouldn't be allowed to see the children unsupervised. He is beating his girlfriend up she told me but she is now denying it - the kids don't want to see him alone they are petrified of him. They saw him beat me up and he tells everyone that he was acting in self defence which was a lie. The kids are not allowed to be witnesses in court.

The police are not involved so I can't get them to get these photos back - but I desperately need them for court.

I have run three different free programmes and recovered all deleted photos but he shredded them - please can anyone help? My kids lives are at stake - this guy is dangerous - he is a psychopath.

What about the iPad? I took some photos with Photo Booth. They were deleted not shredded off the iPad.
Any ideas?
Added (1). The recovered deleted photos were not the ones - they have not been found - so not all were recovered.

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