Background
6 The following summary of the background facts is substantially based on the reasons for judgment of the primary judge.
7 On 10 May 2010, the applicant arrived in Australia as an unauthorised maritime arrival.
8 There is a lengthy procedural history to this matter. The applicant has been the subject of a Refugee Status Assessment process and an Independent Merits Review process in respect of his Refugees Convention claims. Those processes were ultimately unsuccessful for the applicant. The applicant also sought Ministerial intervention pursuant to s 417 of the Migration Act on 5 November 2012.
9 The applicant's claims were then assessed against Australia's non- refoulement obligations and again the applicant was found not to engage these obligations. The applicant's application was subject to a Post Review Protection Check which also found that no obligations were engaged.
10 On 12 June 2015, an ITOA process was commenced. As part of that process, the applicant (through his lawyers) provided submissions. These included a letter dated 12 January 2016 from Vrachnas and Co Lawyers, on behalf of the applicant, to IMA Protection Victoria. Under the heading "Protection Claims", the letter relevantly stated (at page 2) that if returned to Sri Lanka the applicant "will be a failed asylum seeker who departed Sri Lanka illegally". The letter continued:
The Applicant fears returning to Sri Lanka on account that he will be detained indefinitely and tortured because he is perceived of having links to the LTTE and is suspected of assisting the LTTE in the murder of a Sri Lankan Army [soldier]. Upon being detained, he will be at risk of physical assault and torture during his interrogation by the security services. This treatment would amount to serious harm and, in the context of the human rights situation in Sri Lanka, there is no reason to find that his fear is not genuine.
11 The letter stated (at page 29):
According to the DFAT Country Report on Sri Lanka, entry and exit from Sri Lanka is governed by the Immigrants and Emigrants Act 1949 ("I&E Act"), under which it is an offence to depart from Sri Lanka other than via an approved port of departure (such as a seaport or airport). Returnees, such as the Applicant, who departed Sri Lanka irregularly by boat are generally considered to have committed an offence under the I&E Act.
(Footnotes omitted.)
12 Further, at page 30 of the letter, it was submitted:
Accordingly, on return to Sri Lanka, as a person who departed the country illegally, the Applicant will be questioned at the airport while criminal and security checks are undertaken. The CID and other Sri Lankan authorities in his home area will be notified of his return. If the Applicant is released, it is also when he returns to his home region that it must be considered that the Applicant would face a real chance of serious harm at the hands of the Sri Lankan authorities.
13 Later in the letter, commencing at page 33, the applicant's lawyers addressed the complementary protection criterion. It was submitted:
Whilst it is our submission that the Applicant is owed protection under the Refugee criterion contained in s 36(2)(a) of the Act, if you are minded to conclude that he is not a refugee, the information regarding the ongoing commission of human rights and other abuses towards persons in his circumstances supports a conclusion that he may fall within the complementary protection criterion included under section 36(2)(aa) of the Act.
14 It was submitted (at page 34) that there were substantial grounds for believing that, as a necessary and foreseeable consequence of the applicant being removed from Australia to Sri Lanka, there was a real risk that he may suffer significant harm. The following matters were noted, in particular:
• Available information supports that the Applicant will be charged and remanded on his return for a criminal offence under Sri Lanka's I&E Act on the basis of the nature of his departure from the country. All returnees who departed Sri Lanka illegally are charged with a criminal offence under section 45(l)(b) of the I&E Act, the particular offences being set out in sections 34 and 35(a). In the Applicant's circumstances, there is then a real risk that he will face arrest and detention on his return; and
• Based on available information relating to the treatment of prisoners and individuals held in police custody or prisons in Sri Lanka and the conditions that the Applicant would face on return to the country, there is a real risk of harm that would amount to significant harm for the purposes of the Act.
15 The letter referred to country information relating to the above submission (at pages 34-36 of the letter). It was submitted:
We submit that it is highly likely that upon return to Sri Lanka the Applicant will be detained and questioned under the I&E Act. The Applicant faces an increased risk of indefinite detention on account of his perceived links to the LTTE and his past activities in Sri Lanka, during which time the Sri Lankan authorities will interrogate him. During this period of indefinite detention, the Applicant will be at serious risk of physical assault and torture as the authorities attempt to extract information from him.
16 The applicant was invited to attend, and attended, an interview on 4 March 2016 to consider whether his case engaged Australia's non-refoulement obligations. The applicant was represented at that interview and was supported by a Tamil interpreter.
17 On 1 April 2016, the applicant, via his representative, was invited to comment on country information relevant to the applicant's claims. In particular, in relation to the applicant's claim to fear harm as a failed asylum seeker who had left Sri Lanka illegally, the assessor set out DFAT country information from December 2015 which relevantly stated:
… no returnee who was merely a passenger on a people smuggling venture had been given a custodial sentence for departing Sri Lanka illegally.
…
Although DFAT does not routinely monitor the situation of returnees, DFAT assesses that the risk of torture or mistreatment for the majority of returnees is low, including those suspected of offences under the Immigrants and Emigrants Act…
…
DFAT assess that returnees are treated according to these standard procedures, regardless of their ethnicity and religion. DFAT further assesses that detainees are not subject to mistreatment during their processing at the airport …
18 The assessor invited the applicant to comment on that country information.
19 The applicant's representative responded by letter dated 19 April 2016. He addressed the situation of a returning failed asylum seeker with a political profile, but did not specifically address any concern that the applicant was at risk of harm during any period he might be in detention on his return.