He has been out of office for more than a year and a half, but legal issues related to his time in office still pose a risk to former President Donald Trump.

The recent Federal Bureau of Investigation (FBI) search of the 76-year-old's Florida home has focused attention on his handling of official documents while he was president.

Two criminal investigations are ongoing: one for possible interference in elections and another for suspected financial crimes, the

Meanwhile, a political investigation is ongoing into criminal charges for his role in the attack on Congress on January 6, 2021.

As Trump looks to run for president again in 2024, these legal cases could derail those ambitions.

White House records

When Trump left the White House, he took many documents with him to the Mar-a-Lago resort in Florida.

Under the Presidential Records Act, obtaining official documents can constitute a criminal offence.

According to Trump himself, "a large group of FBI agents" searched his residence on August 8, Telegraph reports.

His lawyer, Christina Bobb, told NBC News that some papers had been seized.

However, the FBI and the Justice Department have yet to comment.

In February, the National Archives said it received 15 boxes of letters at Mar-a-Lago that Trump should have turned in when he left the White House.

The agency later told Congress that the boxes contained "items marked as classified national security information."

But Trump claimed the government "found nothing" and that Democrats were simply "looking for their next scam."

Keeping records allows presidents to be held accountable for their actions in office, says presidential historian Lindsay Chervinsky.

But implementing the Presidential Records Act is "complicated," she says, because the law requires the "good will" of presidents to preserve their records.

US Capitol Riots

Trump is accused of inciting an "uprising" when supporters ransacked the Capitol building as members of Congress certified Joe Biden's election victory on January 6, 2021.

For weeks earlier, he had made baseless claims of election fraud, which he repeated at a rally on the National Mall in Washington DC just before the riots.

Soon after, Trump was acquitted in a political trial in the Republican-controlled Senate, and supporters declared victory.

But that was not the end of it.

In July of last year, Democrats and some Republican politicians formed a January 6 committee, which is scrutinizing Trump's actions in detail.

It has received thousands of communications made to and from the White House.

So far, the committee's public hearings have generated a series of allegations, including testimony from Trump's own aides and advisers that he knew the allegations of election fraud were false — and that the steps he was taking to overturn the results were illegal.

Of course, there is a key difference between these hearings and a criminal trial — Trump and his supporters have not had an opportunity to present their defense.

While the committee does not have legal powers to prosecute Trump, it could choose to refer criminal charges to the US government's top lawyer, Attorney General Merrick Garland.

Possible charges include obstructing the counting of congressional votes and conspiring to defraud the US by overturning election results, both of which carry fines or prison terms.

However, no former president has been prosecuted.

Further public hearings will be held in September as the investigation continues.

Election interference

A few days before the attack on Congress, the top election official in the state of Georgia received an unusual phone call.

"I just want to find 11,780 votes," Georgia's Republican Secretary of State Brad Raffensperger said anxiously.

The votes would have given Trump victory in the key state in 2020. Alleging baseless election fraud, Trump suggested such a result could be possible if Raffensperger could "reconsider" the result.

11,780 votes were never found.

"We believe our numbers are accurate," Raffensperger said.

Georgia's Fulton County District Attorney, Fannie Willis, launched an investigation into possible state election crimes punishable by fines or prison terms.

Trump sees the case as a "witch hunt," but calling Raffensperger could be an "incriminating statement," said Barbara McQuade, a law professor at the University of Michigan.

Prosecutors will have to prove beyond a reasonable doubt that Trump knew the actions were fraudulent.

Financial matters

Some legal experts believe the tax and bank fraud charges in New York are the biggest threat Trump faces.

Manhattan District Attorney Cyrus Vance and team spent more than two years poring over Trump's finances for possible crimes.

Those alleged crimes involved inflating the value of assets to obtain loans, a type of fraud that can carry prison terms.

For prosecutors, getting hold of Trump's tax returns and charging his company's chief financial officer with tax fraud were two major breakthroughs.

Then, in late 2021, Vance left office and was replaced by fellow Democrat Alvin Bragg.

To move the case forward, the two prosecutors leading the investigation, Carey Dunne and Mark Pomerantz, tried to convince their new boss that they had enough evidence to file criminal charges.

He did not agree, the prosecutors resigned and the investigation was discontinued.

Their team "had no doubt that Trump committed crimes — he did," Pomerantz wrote in his resignation letter to Bragg.

These alleged crimes have been vehemently denied by Trump.

If Bragg ever does press charges, he really should because "the justice system would be exposed," says Daniel R Alonso, a former New York state attorney.

To complicate matters, some of the allegations from the Vance investigation are being reviewed by the New York Attorney General in a separate civil investigation, which was opened in 2019.

Sexual misconduct

"She's not my type," Trump said in response to allegations that he sexually assaulted a columnist in the 1990s. "It never happened, OK?"

That was in 2019, days after E Jean Carroll made the allegations.

She then sued Trump for calling him a liar.

The case has long been buried in the "sand", but a trial date has been set for February 6, 2023 - unless there is an out-of-court settlement in the meantime.

That should be all, right?

No.

A long list of other investigations and possible lawsuits includes:

• The Washington DC Attorney General's criminal investigation into the January 6 attack.

Last year, he said Trump could be charged with inciting violence, but no action has been taken.

• Various lawsuits by police officers who have accused Trump of inciting the Jan. 6 attack in which they were injured.

• A lawsuit by Trump's niece, Mary Trump, who says her uncle along with her siblings allegedly defrauded her about the family inheritance.

Trump has sought to dismiss the lawsuit, which was filed in a state court in New York City.

• A lawsuit filed in Manhattan federal court by Trump's former personal attorney, Michael Cohen, who claims the former boss sent him back to prison in retaliation for writing the memoir.