Middeniya methamphetamine chemical-stock case
Current status of the Middeniya methamphetamine chemical-stock case
Regarding Wijewickrama Manamperige Piyal Senadheera (Piyal Manamperi)
INVESTIGATIONPiyal Manamperi, a former Sri Lanka Podujana Peramuna (SLPP) member of the Angunakolapelessa Pradeshiya Sabha, was arrested on 6 September 2025 after police recovered a large stock of chemicals - reported at roughly 50,000 kg - alleged to be linked to crystal methamphetamine ('Ice') production, buried at a property in Thalawa, Middeniya. Police said the land belonged to his brother, Sampath Manamperi, and alleged that both had been involved in concealing the material. Piyal was remanded and his detention was extended repeatedly by the Walasmulla Magistrate's Court through at least 7 January 2026. Laboratory testing connected to the wider investigation was reported to have found chemicals used in methamphetamine production, and in February 2026 police told a court hearing concerning the case that laboratory reports had identified a quantity of crystal methamphetamine itself in material connected to the investigation - a finding reported in connection with the case as a whole, not specifically attributed to Piyal in the sources reviewed. No publicly reported High Court indictment or conviction against Piyal in this case has been located, though some contemporary reporting describes him as remanded 'on charges' concerning possession of the chemicals. His custody status after the January 2026 remand order could not be independently verified.
What’s happened
Piyal's sister has publicly alleged he was physically abused in police custody after his arrest; this is a family allegation, not a judicial finding, and has not been adjudicated in the material reviewed. A third suspect (reported as Charith Madusanka) was also remanded alongside Piyal in later hearings. No public report locates Piyal's custody status after the 7 January 2026 remand order expired. This case is unrelated to the 2013 cannabis-trafficking matter recorded against his brother Sampath (sampath-manamperi-01) and the related vehicle-confiscation appeal (piyal-manamperi-02), which both predate it by over a decade.
- Court
- Walasmulla Magistrate's Court
- Next hearing / due
- Next hearing not confirmed
Regarding W.M. Sampath Preethi Viraj (Sampath Manamperi)
INVESTIGATIONSampath Manamperi is alleged to have been involved, with his brother Piyal, in concealing a large stock of chemicals - reported at roughly 50,000 kg - linked to methamphetamine ('Ice') production at a property he owned in Thalawa, Middeniya, discovered by police on 5 September 2025. After his SLPP party membership was suspended and a Court of Appeal application seeking safe-surrender assurances was filed on his behalf, he surrendered to the Walasmulla Magistrate's Court on 17 September 2025 and was detained for questioning, later extended under a 90-day detention order. By February 2026 he was remanded until 4 March 2026, with police telling the court that their investigation concerning him had concluded and that laboratory testing had detected 15 kg 19 g of crystal methamphetamine in material connected to the case. No indictment or conviction against him in this specific matter has been located.
What’s happened
Shares its case_slug with piyal-manamperi-01 because both matters arise from the same investigation and recovery event, even though the brothers' remand proceedings have run separately. Police separately linked material found here to an organised-crime figure reported as 'Backhoe Saman', who is alleged to have supplied Sampath with items later recovered in the related weapons/grenade matter (sampath-manamperi-05). Related development, 11 Sep 2026: Sampath was granted bail by the Tangalle High Court specifically in the separate live-grenade/weapons matter (sampath-manamperi-05). That order does not establish that he has been granted bail, or any other resolution, in this methamphetamine matter.
- Court
- Walasmulla Magistrate's Court
- Next hearing / due
- Next hearing not confirmed
Middeniya methamphetamine chemical-stock case timeline
- 24 April 2026
Hearing
A Newsfirst report on the Illegal Assets Investigation Division's restriction of a vehicle linked to Sampath (see sampath-manamperi-07) separately described him as 'currently in remand custody' on this date, and tied that detention to the Middeniya chemical-stock case at Ka'riyamaditta, Thalawa South. This is the latest independently verified custody confirmation located for this matter - it moves the last confirmed point forward from the 25 Feb/4 Mar 2026 court date by nearly two months, though it is a press description rather than a specific new court order, and 'hearing' is used here only as the closest available event category.
Court: Walasmulla Magistrate's Court
Sources (1)
- 25 February 2026
Remanded
Remanded until 4 March 2026; police told the court that their investigation concerning him had been completed and that laboratory reports had detected 15 kg 19 g of crystal methamphetamine in material connected to the case. Police also said that two men already in custody and produced in court that day - 'Backhoe Saman' and 'Tembili Lahiru' - would be named as suspects, while two further organised-crime suspects, 'Kehelbaddara Pathme' (also reported elsewhere as 'Kehelbaddara Padme') and 'Panadura Nilanga', were expected to be produced before court later - indicating the investigation had widened beyond the two brothers.
Court: Walasmulla Magistrate's Court
Sources (1)
- 7 January 2026
Hearing
Reporting had Piyal's detention extended to this date, but no reliable public report establishing the outcome of that court date (further remand, bail, or release) has been located as of 14 Sep 2026.
Court: Walasmulla Magistrate's Court
Sources (1)
- 24 December 2025
Remanded
Piyal's detention was extended by the Walasmulla Magistrate's Court to 7 January 2026, the last publicly confirmed extension located.
Court: Walasmulla Magistrate's Court
Sources (1)
- 24 December 2025
Remanded
A magistrate authorised a further 90-day detention order for Sampath. Newsfirst reported the nominal end date as 26 March 2026; a separate report gives 20 March 2026 instead, and that discrepancy is not resolved here. In the event, Sampath was produced again well before either date - on 25 February 2026 - and remanded until 4 March 2026 (see the following event), which superseded this nominal end date.
Court: Walasmulla Magistrate's Court
Sources (1)
- 19 December 2025
Remanded
Piyal and Sampath were produced before Walasmulla Magistrate Malsha Kodithuwakku. Police from the Western Province North Crimes Division sought a further 90-day detention order (for Sampath) from the expiry of the then-current order on 24 Dec; the magistrate ordered both further detained until 24 December.
Court: Walasmulla Magistrate's Court
Sources (1)
- 19 December 2025
Remanded
Produced (with Piyal) before Walasmulla Magistrate Malsha Kodithuwakku. Police from the Western Province North Crimes Division sought a further 90-day detention order from the expiry of the then-current order on 24 Dec; the magistrate ordered further detention until 24 December.
Court: Walasmulla Magistrate's Court
Sources (1)
- 26 September 2025
Remanded
Police obtained a 90-day detention order to continue interrogating Sampath in connection with the Middeniya chemical stock.
Court: Walasmulla Magistrate's Court
Sources (1)
- 17 September 2025
Remanded
Surrendered to the Walasmulla Magistrate's Court, which authorised a seven-day detention order for questioning over the Middeniya chemical stock.
Court: Walasmulla Magistrate's Court
Sources (2)
- 14 September 2025
Hearing
The National Dangerous Drugs Control Board reportedly tested 20 samples collected from the Middeniya site and found that 17 of the 20 contained chemicals used to produce crystal methamphetamine ('Ice'). This is a laboratory finding about the recovered material, not itself a court hearing, arrest, or charge, and 'hearing' is used here only as the closest available event category.
Court: Walasmulla Magistrate's Court
Sources (1)
- 14 September 2025
Hearing
The National Dangerous Drugs Control Board reportedly tested 20 samples collected from the Middeniya site and found that 17 of the 20 contained chemicals used to produce crystal methamphetamine ('Ice'). This is a laboratory finding about the recovered material, not itself a court hearing, arrest, or charge, and 'hearing' is used here only as the closest available event category.
Court: Walasmulla Magistrate's Court
Sources (1)
- 7 September 2025
Remanded
The Walasmulla Magistrate's Court issued a seven-day detention order to allow police to interrogate Piyal over the Middeniya chemical stock.
Court: Walasmulla Magistrate's Court
Sources (1)
- 6 September 2025
Arrested
Arrested in connection with the discovery of roughly 50,000 kg of chemicals allegedly used to manufacture crystal methamphetamine, buried at a property in Thalawa, Middeniya. Police alleged Piyal and his brother Sampath had concealed the material.
Court: Walasmulla Magistrate's Court
Sources (2)