The decade-old Port Klang Free Zone (PKFZ) scandal hit the headlines again when former Port Klang Authority (PKA) general manager OC Phang was acquitted on three counts of criminal breach of trust totalling payments of RM254.85 million.

This came as almost no surprise, following the acquittal of two former transport ministers, Dr Ling Liong Sik and Chan Kong Choy, in October 2013 and January 2014 respectively.

Thus far, no one has been found guilty for alleged offences committed in connection with the PKFZ scandal.

Besides Phang, Ling and Chan, three others from the private sector - PKFZ's turnkey contractor Kuala Dimensi Sdn Bhd’s former chief operating officer Steven Abok, former project manager Law Jenn Dong and project consultant BTA Architect's Bernard Tan - were slapped with various charges.

Launched in November 2006, PKFZ, modelled after the highly successful Jebel Ali Free Zone in Dubai, United Arab Emirates, caught the nation by surprise when its setting-up cost ballooned from RM1.96 billion to RM12 billion. Yet, the project was reported to resemble a ghost town, six months after its completion.

The government vowed action on the Transport Ministry in connection with the PKFZ scandal, while the Public Accounts Committee (PAC) recommended that Chan and Phang be investigated for criminal breach of trust.

Indeed, the PKFZ case is not an isolated incident in the past three decades.

There were other similarly high-profile cases including fraud and corruption involving billions of ringgit in losses, which ended up with nobody being held responsible after the hearings of these cases.

This is despite the government continuously pledging its commitment in anti-corruption and clamping down on irregularities.

Malaysiakini has compiled several such similar high-profile cases, which are:

1. Perwaja Steel

Set up in 1982, Perwaja Steel was the brainchild of the then prime minister Dr Mahathir Mohamad, who wanted key state-owned companies to venture into heavy industries.

However, this RM250 million joint venture suffered RM120 million losses in its first year of operation.

The Star reported that several attempts went into resuscitating Perwaja, but to no avail. It is estimated more than RM15 billion was lost in the process.

The company's former managing director, Eric Chia, was charged with criminal breach of trust amounting to RM76.4 million in 2008.

Three years later, the Singapore-born businessman was acquitted as the court found that the prosecutor failed to call material witnesses.

2) National Feedlot Centre (NFC)

The 2010 auditor-general’s report, which pointed out the weakness in NFC, particularly those related to its failure to meet its target of breeding 8,000 head of cattle by 2010, snowballed into major issues in the following years.

National Feedlot Corporation (NFCorp), the company given a RM250 million federal loan to run NFC, came into the spotlight after the opposition exposed that the money was used to purchase properties and other expenses.

NFCorp executive chairperson Mohamad Salleh Ismail, husband of the then Umno minister Sharizat Abdul Jalil, was later slapped with four charges involving RM49.7 million in March 2012.

However, in November 2015, the prosecution dropped all the charges against Salleh.

3) Kasitah Gaddam's case

On Feb 12, 2002, the then Land and Cooperative Development Minister Kasitah Gaddam was charged with corrupt practices in the disposal of shares worth RM24 million while heading a Sabah state-owned body.

The Umno minister also faced a second charge of misleading the directors of the Sabah Land Development Board in the share deal eight years ago.

Seven years later, the High Court in Kuala Lumpur acquitted Kasitah, citing the prosecution's failure to call board members as witnesses to be detrimental to the case.

4) Umno state assemblyperson's case

Mustafa Salim (photo), the then Lenggeng state assemblyperson, was in 2008 found guilty of receiving RM20,000 at a restaurant in Mantin by a Sessions Court and sentenced to three years in jail.

The money was purportedly an inducement for Mustafa to issue a supporting letter involving a sand project.

However, he appealed and five years later, the High Court in Seremban overturned the conviction and sentence against him.

5) Ex-Tourism director-general's case

Former Tourism Ministry director-general Mirza Mohammad Taiyab was acquitted in 2009 from a charge of receiving valuable gratification in the form of an expensive dental treatment as a public officer.

Mirza was charged under Section 165 of the Penal Code with accepting dental treatment worth RM13,860, paid by a director of an advertising firm, in 2008.

In another case, Mirza, together with the former chief operating officer of Pembangunan Pelancongan Malaysia Bhd (Pempena), Mohammad Rosly Md Selamat, walked free in 2012 from criminal breach of trust (CBT) involving RM888,000.

6) Umno Youth leader's case

In June 2010, a Sessions Court in Temerloh, Pahang, acquitted former Federal Territories Umno Youth chief Norza Zakaria and his agent Halimi Kamaruzzaman of corruption charges on vote buying during the run-up to the Umno elections one year earlier.

7) Ex-Sime Darby CEO's case

Former Sime Darby Bhd president and group CEO Ahmad Zubair Murshid was acquitted in June for criminal breach of trust and fraud charges after a two-year trial.

Zubir was charged with CBT that allegedly cost the company more than RM100 million in losses.

8) Cheras Umno leader's case

Cheras Umno division information chief Zamri Redzuan @ Ridzuan, who was charged with criminal breach of trust (CBT) involving RM4,350, claimed trial at the Sessions Court in Kuala Lumpur in March.

He was acquitted two months later, after the prosecution withdrew the charge against him.

9) Former CCID chief's case

Former Commercial Crime Investigation Department (CCID) director Ramli Yusuff (photo) was slapped with five charges in Kuala Lumpur and Sabah, including failing to declare his assets, violating laws prohibiting civil servants from being involved in private business and abuse of power.

Ramli was subsequently acquitted on all charges. Then, in 2012, the government dropped its appeal against Ramli’s acquittal.

Ramli was alleged to be the "RM27 million cop" by MACC following its investigation against Ramil and his team in what was known as the "Copgate affair" allegedly involving then-inspector-general of police Musa Hassan and the then attorney-general Abdul Gani Patail.